/*
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ Bonsai: A more user friendly zoom function for Cacti                        +
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ Copyright (C) 2004  Eric Steffen                                            +
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ This program is free software; you can redistribute it and/or               +
+ modify it under the terms of the GNU General Public License                 +
+ as published by the Free Software Foundation; either version 2              +
+ of the License, or (at your option) any later version.                      +
+                                                                             +
+ This program is distributed in the hope that it will be useful,             +
+ but WITHOUT ANY WARRANTY; without even the implied warranty of              +
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               +
+ GNU General Public License for more details.                                +
+                                                                             +
+ You should have received a copy of the GNU General Public License           +
+ along with this program; if not, write to the Free Software                 +
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. +
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ email : eric.steffen@gmx.net                                                +
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

 zoom.js version 0.4
*/
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/


// Objects declaration


/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/*++++++++++++++++++++++++++++++++  urlObj  +++++++++++++++++++++++++++++++++*/
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/

function urlObj(url) {
	var urlBaseAndParameters;

	urlBaseAndParameters = url.split("?");
	this.urlBase = urlBaseAndParameters[0];
	this.urlParameters = urlBaseAndParameters[1].split("&");

	this.getUrlBase = urlObjGetUrlBase;
	this.getUrlParameterValue = urlObjGetUrlParameterValue;
}

/*++++++++++++++++++++++++  urlObjGetUrlBase  +++++++++++++++++++++++++++++++*/

function urlObjGetUrlBase() {
	return this.urlBase;
}

/*++++++++++++++++++++  urlObjGetUrlParameterValue  +++++++++++++++++++++++++*/

function urlObjGetUrlParameterValue(parameter) {
	var i;
	var fieldAndValue;
	var value;

	i = 0;
	while (this.urlParameters [i] != undefined) {
		fieldAndValue = this.urlParameters[i].split("=");
		if (fieldAndValue[0] == parameter) {
			value = fieldAndValue[1];
		}
		i++;
	}

	return value;
}



/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/*+++++++++++++++++++++++++++++++  mouseObj  ++++++++++++++++++++++++++++++++*/
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/

function mouseObj() {
	this.startedX = 0;
	this.startedY = 0;

	this.stoppedX = 0;
	this.stoppedY = 0;

	this.currentX = 0;
	this.currentY = 0;

	this.dragging = false;

	this.setEvent = mouseObjSetEvent;
	this.leftButtonPressed = mouseObjLeftButtonPressed;
	this.rightButtonPressed = mouseObjRightButtonPressed;
	this.getCurrentPosition = mouseObjGetCurrentPosition;
	this.saveCurrentToStartPosition = mouseObjSaveCurrentToStartPosition;
	this.saveCurrentToStopPosition = mouseObjSaveCurrentToStopPosition;
}

/*++++++++++++++++++++++++  mouseObjSetEvent  +++++++++++++++++++++++++++++++*/

function mouseObjSetEvent(theEvent) {
	if (gBrowserObj.browser == "Netscape") {
		this.event = theEvent;
	} else {
		this.event = window.event;
	}
}

/*++++++++++++++++++++++++  mouseObjLeftMouseButton  +++++++++++++++++++++++++++++++*/

function mouseObjLeftButtonPressed() {
	var LeftButtonPressed = false;
	// alert ("Button Pressed");

	if (gBrowserObj.browser == "Netscape") {
		LeftButtonPressed = (this.event.which == 1);
		// alert ("Net");

	} else {
		LeftButtonPressed = (this.event.button == 1);
	}

	return LeftButtonPressed;
}

/*++++++++++++++++++++++++  mouseObjRightMouseButton  +++++++++++++++++++++++++++++++*/

function mouseObjRightButtonPressed() {
	var RightButtonPressed = false;
	// alert ("Button Pressed");

	if (gBrowserObj.browser == "Netscape") {
		RightButtonPressed = (this.event.which == 3);
		// alert ("Net");

	} else {
		RightButtonPressed = (this.event.button == 2);
	}

	return RightButtonPressed;
}

/*+++++++++++++++++++  mouseObjGetCurrentPosition  ++++++++++++++++++++++++++*/

function mouseObjGetCurrentPosition() {
	this.currentX = this.event.clientX + document.body.scrollLeft;
	this.currentY = this.event.clientY + document.body.scrollTop;
// alert (this.currentX + "\n" + this.currentY);

}

/*+++++++++++++++++  mouseObjSaveCurrentToStartPosition  ++++++++++++++++++++*/

function mouseObjSaveCurrentToStartPosition() {
	this.startedX = this.currentX;
	this.startedY = this.currentY;
}

/*++++++++++++++++++  mouseObjSaveCurrentToStopPosition  ++++++++++++++++++++*/

function mouseObjSaveCurrentToStopPosition() {
	this.stoppedX = this.currentX;
	this.stoppedY = this.currentY;
}

/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/*+++++++++++++++++++++++++++++  zoomGraphObj  ++++++++++++++++++++++++++++++*/
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/

function zoomGraphObj(zoomGraphName) {
	// We use 3 zones. The first (zoomGraph) represent the entire graph image.

	// The second (zoomBox) represent the graph itself.

	// The last zone (zoomSensitiveZone) represent the area where the user can

	// launch the zoom function


	this.zoomGraphName = zoomGraphName;
	this.imgObject = document.getElementById(this.zoomGraphName);
	gUrlObj = new urlObj(this.imgObject.src);

	this.zoomGraphLeft = 0;
	this.zoomGraphTop = 0;
	this.zoomGraphRight = 0;
	this.zoomGraphBottom = 0;
	this.zoomGraphWidth = 0;
	this.zoomGraphHeight = 0;

	this.zoomBoxLeft = 0;
	this.zoomBoxTop = 0;
	this.zoomBoxRight = 0;
	this.zoomBoxBottom = 0;
	this.zoomBoxWidth = 0;
	this.zoomBoxHeight = 0;

	this.zoomSensitiveZoneLeft = 0;
	this.zoomSensitiveZoneTop = 0;
	this.zoomSensitiveZoneRight = 0;
	this.zoomSensitiveZoneBottom = 0;
	this.zoomSensitiveZoneWith = 0;
	this.zoomSensitiveZoneHeight = 0;

	this.refresh = zoomGraphObjRefresh;
	this.drawSelection = zoomGraphObjDrawSelection;

	this.refresh();
}

/*+++++++++++++++++++++++++++  zoomGraphObjRefresh  +++++++++++++++++++++++++*/

function zoomGraphObjRefresh() {
	//  constants

	var cZoomBoxName = "zoomBox";

	//var titleFontSize = parseInt(gUrlObj.getUrlParameterValue("title_font_size"));

	var titleFontSize = 13;

	if (titleFontSize == 0) {
		var cZoomBoxTopOffsetWOText = 15 - 1;
		var cZoomBoxTopOffsetWText = 32 - 1;
		var cZoomBoxRightOffset = -16;
	} else {
		var cZoomBoxTopOffsetWOText = 10 - 1;
		var cZoomBoxTopOffsetWText = titleFontSize + (titleFontSize * 1.6) + 10 - 1;
		var cZoomBoxRightOffset = -28;
	}

	// zone outside of Zoom box where user can move cursor to without causing odd behavior

	var cZoomSensitiveZoneName = "zoomSensitiveZone";
	var cZoomSensitiveZoneOffset = 30;

	// variables

	var imgObject;
	// var imgSource;

	var imgAlt;

	var divObject;

	var left;
	var top;
	var width;
	var height;

	// zoomable selection area Width and Height

	var zoomBoxWidth;
	var zoomBoxHeight;

	imgObject = this.imgObject;
	//imgSource = imgObject.src;

	imgAlt = imgObject.alt;

	// determine the overall graph size

	width = imgObject.width;
	height = imgObject.height;

	// get the graph area size from the url

	//zoomBoxWidth = parseInt(gUrlObj.getUrlParameterValue("graph_width")) + 1;

	//zoomBoxHeight = parseInt(gUrlObj.getUrlParameterValue("graph_height")) + 1;


	// L.Deri

	x_displacement = 4;
	y_displacement = 8;

	// This is the size of the graph visible area - L.Deri

	zoomBoxWidth = 498;
	zoomBoxHeight = 120;

	// Get absolute image position relative to the overall window.

	//

	// start with the image's coordinates and walk through it's

	// ancestory of elements (tables, div's, spans, etc...) until

	// we're at the top of the display.  Along the way we add in each element's

	// coordinates to get absolute image postion.

	left = 0;
	top = 0;
	do {
		left += imgObject.offsetLeft;
		top += imgObject.offsetTop;
		imgObject  = imgObject.offsetParent;
	} while(imgObject);

	// set the images's Ix1,Iy1 and Ix2,Iy2 postions based upon results

	this.zoomGraphLeft = left;
	this.zoomGraphTop = top;
	this.zoomGraphRight = left + width;
	this.zoomGraphBottom = top + height;
	this.zoomGraphWidth = width;
	this.zoomGraphHeight = height;

	// calculate the right hand coordinate (rrdGAx2) of the zoom box (aka rrd Graph area)

	this.zoomBoxRight = this.zoomGraphRight + cZoomBoxRightOffset;

	// calculate the top coordinate (rrdGAy2) of the zoom box (aka rrd Graph area)

	if(imgAlt == "") {
		this.zoomBoxTop = this.zoomGraphTop + cZoomBoxTopOffsetWOText - y_displacement;
	} else {
		this.zoomBoxTop = this.zoomGraphTop + cZoomBoxTopOffsetWText - y_displacement;
	}
	// calculate the left hand coordinate (rrdGAx1) of the zoom box (aka rrd Graph area)

	this.zoomBoxLeft = this.zoomBoxRight - zoomBoxWidth - x_displacement;

	// calculate the bottom coordinate (rrdGAy1) of the zoom box (aka rrd Graph area)

	this.zoomBoxBottom = this.zoomBoxTop + zoomBoxHeight - y_displacement;

	// set the objects zoom sizes from the url values (aka rrd Graph size)

	this.zoomBoxWidth = zoomBoxWidth;
	this.zoomBoxHeight = zoomBoxHeight;

	// this.drawSelection(this.zoomBoxLeft, this.zoomBoxTop, this.zoomBoxRight, this.zoomBoxBottom);

	this.drawSelection(0, 0, 0, 0); // reset selection


	divObject = document.getElementById(cZoomBoxName);
	divObject.style.left = this.zoomBoxLeft;
	divObject.style.top = this.zoomBoxTop;
	divObject.style.width = this.zoomBoxWidth;
	divObject.style.height = this.zoomBoxHeight;

	// allow the crosshair to extend outside of the Graph area without graphical glitches

	this.zoomSensitiveZoneLeft = this.zoomBoxLeft - cZoomSensitiveZoneOffset;
	this.zoomSensitiveZoneTop = this.zoomBoxTop - cZoomSensitiveZoneOffset;
	this.zoomSensitiveZoneRight = this.zoomBoxRight + cZoomSensitiveZoneOffset;
	this.zoomSensitiveZoneBottom = this.zoomBoxBottom + cZoomSensitiveZoneOffset;
	this.zoomSensitiveZoneWidth = this.zoomSensitiveZoneRight - this.zoomSensitiveZoneLeft;
	this.zoomSensitiveZoneHeight = this.zoomSensitiveZoneBottom - this.zoomSensitiveZoneTop;

	divObject = document.getElementById(cZoomSensitiveZoneName);
	divObject.style.left = this.zoomSensitiveZoneLeft;
	divObject.style.top = this.zoomSensitiveZoneTop;
	divObject.style.width = this.zoomSensitiveZoneWidth;
	divObject.style.height = this.zoomSensitiveZoneHeight;
}

/*++++++++++++++++++++++  zoomGraphObjDrawSelection  ++++++++++++++++++++++++*/

function zoomGraphObjDrawSelection (x1, y1, x2, y2) {
	var cZoomBoxName = "zoomBox";
	var divObject;

	x1 = x1 - this.zoomBoxLeft;
	x2 = x2 - this.zoomBoxLeft;
	y1 = y1 - this.zoomBoxTop;
	y2 = y2 - this.zoomBoxTop;

	var minX = Math.min(x1, x2);
	var maxX = Math.max(x1, x2) + 1;
	var minY = Math.min(y1, y2);
	var maxY = Math.max(y1, y2) + 1;

	divObject = document.getElementById(cZoomBoxName);
	divObject.style.clip ="rect(" + minY + "px " + maxX + "px " + maxY + "px " + minX + "px)";
	window.status=divObject.style.clip;
}

/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/*++++++++++++++++++++  standard functions definition  ++++++++++++++++++++++*/
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/

/*
BrowserDetector()
Parses User-Agent string into useful info.

Source: Webmonkey Code Library
(http://www.hotwired.com/webmonkey/javascript/code_library/)

Author: Richard Blaylock
Author Email: blaylock@wired.com

Usage: var bd = new BrowserDetector(navigator.userAgent);
*/

// utility function to trim spaces from both ends of a string

function Trim(inString) {
	var retVal = "";
	var start = 0;
	while ((start < inString.length) && (inString.charAt(start) == ' ')) {
    	++start;
	}

	var end = inString.length;

	while ((end > 0) && (inString.charAt(end - 1) == ' ')) {
		--end;
	}

	retVal = inString.substring(start, end);

	return retVal;
}

function BrowserDetector(ua) {
	// defaults

	this.browser = "Unknown";
	this.platform = "Unknown";
	this.version = "";
	this.majorver = "";
	this.minorver = "";

	uaLen = ua.length;

	// ##### split into stuff before parens and stuff in parens

	var preparens = "";
	var parenthesized = "";

	i = ua.indexOf("(");

	if (i >= 0) {
		preparens = Trim(ua.substring(0,i));
		parenthesized = ua.substring(i+1, uaLen);
		j = parenthesized.indexOf(")");
		if (j >= 0) {
			parenthesized = parenthesized.substring(0, j);
		}
	} else {
		preparens = ua;
	}

	// ##### first assume browser and version are in preparens

	// ##### override later if we find them in the parenthesized stuff

	var browVer = preparens;

	var tokens = parenthesized.split(";");
	var token = "";

	// # Now go through parenthesized tokens

	for (var i=0; i < tokens.length; i++) {
		token = Trim(tokens[i]);
		//## compatible - might want to reset from Netscape

        if (token == "compatible") {
			//## One might want to reset browVer to a null string

			//## here, but instead, we'll assume that if we don't

			//## find out otherwise, then it really is Mozilla

			//## (or whatever showed up before the parens).

			//## browser - try for Opera or IE

		} else if (token.indexOf("MSIE") >= 0) {
			browVer = token;
		} else if (token.indexOf("Opera") >= 0) {
			browVer = token;
		} else if ((token.indexOf("X11") >= 0) || (token.indexOf("SunOS") >= 0) || (token.indexOf("Linux") >= 0)) {
			//'## platform - try for X11, SunOS, Win, Mac, PPC

			this.platform = "Unix";
		} else if (token.indexOf("Win") >= 0) {
			this.platform = token;
        } else if ((token.indexOf("Mac") >= 0) || (token.indexOf("PPC") >= 0)) {
			this.platform = token;
		}
	}

	var msieIndex = browVer.indexOf("MSIE");
	if (msieIndex >= 0) {
		browVer = browVer.substring(msieIndex, browVer.length);
	}

	var leftover = "";
	if (browVer.substring(0, "Mozilla".length) == "Mozilla") {
		this.browser = "Netscape";
		leftover = browVer.substring("Mozilla".length+1, browVer.length);
	} else if (browVer.substring(0, "Lynx".length) == "Lynx") {
		this.browser = "Lynx";
		leftover = browVer.substring("Lynx".length+1, browVer.length);
	} else if (browVer.substring(0, "MSIE".length) == "MSIE") {
		this.browser = "IE";
		leftover = browVer.substring("MSIE".length+1, browVer.length);
	} else if (browVer.substring(0, "Microsoft Internet Explorer".length) == "Microsoft Internet Explorer") {
		this.browser = "IE"
		leftover = browVer.substring("Microsoft Internet Explorer".length+1, browVer.length);
	} else if (browVer.substring(0, "Opera".length) == "Opera") {
		this.browser = "Opera"
		leftover = browVer.substring("Opera".length+1, browVer.length);
	}

	leftover = Trim(leftover);

	// # try to get version info out of leftover stuff

	i = leftover.indexOf(" ");
	if (i >= 0) {
		this.version = leftover.substring(0, i);
	} else {
		this.version = leftover;
	}

	j = this.version.indexOf(".");
	if (j >= 0) {
		this.majorver = this.version.substring(0,j);
		this.minorver = this.version.substring(j+1, this.version.length);
	} else {
		this.majorver = this.version;
	}
} // function BrowserCap



/*++++++++++++++++++++++++++  initBonsai  ++++++++++++++++++++++++++*/

function initBonsai() {
	gBrowserObj = new BrowserDetector(navigator.userAgent);
	// alert("Browser: " + gBrowserObj.browser + "\nPlatform: " + gBrowserObj.platform + "\nVersion: " + gBrowserObj.version + "\nMajorVer: " + gBrowserObj.majorver + "\nMinorVer: " + gBrowserObj.minorver);



	// gUrlObj = new urlObj(document.URL);

	gZoomGraphObj = new zoomGraphObj(gZoomGraphName);
	gMouseObj = new mouseObj();
	initEvents();
}

/*+++++++++++++++++++++++++++  insideZoomBox  +++++++++++++++++++++++++++++++*/

function insideZoomBox() {
	var szLeft = gZoomGraphObj.zoomSensitiveZoneLeft;
	var szTop = gZoomGraphObj.zoomSensitiveZoneTop;
	var szRight = gZoomGraphObj.zoomSensitiveZoneRight;
	var szBottom = gZoomGraphObj.zoomSensitiveZoneBottom;

	var mpX = gMouseObj.currentX;
	var mpY = gMouseObj.currentY;

	return ((mpX >= szLeft) && (mpX <= szRight) && (mpY >= szTop) && (mpY <= szBottom));
}

/*++++++++++++++++++++++++++++  initEvents  +++++++++++++++++++++++++++++++++*/

function initEvents() {
	document.onmousemove = onMouseMouveEvent;
	document.onmousedown = onMouseDownEvent;
	document.onmouseup = onMouseUpEvent;
	window.onresize = windowOnResizeEvent;

	if (gBrowserObj.browser == "Netscape") {
		document.captureEvents(Event.MOUSEMOVE);
		document.captureEvents(Event.MOUSEDOWN);
		document.captureEvents(Event.MOUSEUP);
	}
}

/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/*+++++++++++++++++++++  events functions definition  +++++++++++++++++++++++*/
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/

/*+++++++++++++++++++++++++++  onMouseDownEvent  ++++++++++++++++++++++++++++*/

function onMouseDownEvent(e) {
	gMouseObj.setEvent(e);
	gMouseObj.getCurrentPosition();

	if (insideZoomBox()) {
		if ((gMouseObj.leftButtonPressed()) && (!gMouseObj.dragging)) {
			gMouseObj.dragging = true;
			gMouseObj.saveCurrentToStartPosition();
			gZoomGraphObj.drawSelection(gMouseObj.currentX, gMouseObj.currentY, gMouseObj.currentX, gMouseObj.currentY);
		} else if (gMouseObj.rightButtonPressed()) {
			var test = true;
		}
	}
}

/*+++++++++++++++++++++++++++  onMouseMouveEvent  +++++++++++++++++++++++++++*/

function onMouseMouveEvent(e) {
	gMouseObj.setEvent(e);
	if (gMouseObj.dragging) {
		gMouseObj.getCurrentPosition();
		gZoomGraphObj.drawSelection(gMouseObj.startedX, gMouseObj.startedY, gMouseObj.currentX, gMouseObj.currentY);
	}
}

/*+++++++++++++++++++++++++++++  onMouseUpEvent  ++++++++++++++++++++++++++++*/

function onMouseUpEvent(e) {
	var graphStart;
	var graphEnd;

	var newGraphStart;
	var newGraphEnd;

	gMouseObj.setEvent(e);

	graphStart = parseInt(gUrlObj.getUrlParameterValue("start"));
	graphEnd = parseInt(gUrlObj.getUrlParameterValue("end"));

	// zoom out action

	if ((gMouseObj.rightButtonPressed()) && (insideZoomBox())) {
		var Timespan = graphEnd - graphStart;

		gMouseObj.dragging = false;
		newGraphEnd = graphEnd + Timespan * 2;
		newGraphStart = graphStart - Timespan * 2;

		var urlBase = cURLBase;
		var  action = gUrlObj.getUrlParameterValue("action");
		var  graphId = gUrlObj.getUrlParameterValue("graphId");
		var  arbfile = gUrlObj.getUrlParameterValue("arbfile");
		var  arbiface = gUrlObj.getUrlParameterValue("arbiface");
		var  title = gUrlObj.getUrlParameterValue("title");
		var  key = gUrlObj.getUrlParameterValue("key");
		var  name = gUrlObj.getUrlParameterValue("name");
		var  graph_width = gUrlObj.getUrlParameterValue("graph_width");
		var  graph_height = gUrlObj.getUrlParameterValue("graph_height");

		if(action == undefined) action = "arbreq";

		if(typeof arbfile != "undefined")
		open(urlBase + "&action="+action+"&which=graph&key="+key+"&name="+name+"&arbfile=" + arbfile + "&graphId=" + graphId + "&arbiface=" + arbiface + "&start=" + newGraphStart + "&end=" + newGraphEnd + "&title=" + title + "&graph_width=" + graph_width + "&graph_height=" + graph_height +"&mode=zoom", "_self");
		else
		open(urlBase + "&action="+action+"&key="+key+"&name="+name+"&graphId=" + graphId + "&start=" + newGraphStart + "&end=" + newGraphEnd + "&title=" + title + "&graph_width=" + graph_width + "&graph_height=" + graph_height +"&mode=zoom&name="+name, "_self");
	}

	// zoom in action

	if ((gMouseObj.leftButtonPressed()) && (gMouseObj.dragging)) {
		gMouseObj.getCurrentPosition();
		gMouseObj.saveCurrentToStopPosition();
		gMouseObj.dragging = false;

		// check for appropriate selection zone

		if (((gMouseObj.startedX < gZoomGraphObj.zoomBoxLeft) && (gMouseObj.stoppedX < gZoomGraphObj.zoomBoxLeft)) ||
			((gMouseObj.startedX > gZoomGraphObj.zoomBoxRight) && (gMouseObj.stoppedX > gZoomGraphObj.zoomBoxRight)) ||
			((gMouseObj.startedY > gZoomGraphObj.zoomBoxBottom) && (gMouseObj.stoppedY > gZoomGraphObj.zoomBoxBottom)) ||
			((gMouseObj.startedY < gZoomGraphObj.zoomBoxTop) && (gMouseObj.stoppedY < gZoomGraphObj.zoomBoxTop))) {
			// alert("Selection Outside of Allowed Area");

		}else {
			var x1 = gMouseObj.startedX - gZoomGraphObj.zoomBoxLeft;
			var x2 = gMouseObj.stoppedX - gZoomGraphObj.zoomBoxLeft;

			var y1 = gMouseObj.startedY - gZoomGraphObj.zoomBoxTop;
			var y2 = gMouseObj.stoppedY - gZoomGraphObj.zoomBoxTop;

			var minX = Math.min(x1, x2);
			var maxX = Math.max(x1, x2);
			var minY = Math.min(y1, y2);
			var maxY = Math.max(y1, y2);

			if (minX < 0) {
				minX = 0;
			}

			if (maxX > gZoomGraphObj.zoomBoxWidth) {
				maxX = gZoomGraphObj.zoomBoxWidth;
			}

			if (minY < 0) {
				minY = 0;
			}

			if (maxY > gZoomGraphObj.zoomBoxHeight) {
				maxY = gZoomGraphObj.zoomBoxHeight;
			}

			if ((minX != maxX) || (minY != maxY)) {
				var OnePixel = (graphEnd - graphStart) / gZoomGraphObj.zoomBoxWidth;  // Represent # of seconds for 1 pixel on the graph


				newGraphEnd = Math.round(graphEnd - (gZoomGraphObj.zoomBoxWidth - maxX) * OnePixel);
				newGraphStart = Math.round(graphStart + minX * OnePixel);

				//  var urlBase = gUrlObj.getUrlBase();

				var urlBase = cURLBase;
		var  action = gUrlObj.getUrlParameterValue("action");
		var  graphId = gUrlObj.getUrlParameterValue("graphId");
		var  arbfile = gUrlObj.getUrlParameterValue("arbfile");
		var  arbiface = gUrlObj.getUrlParameterValue("arbiface");
		var  title = gUrlObj.getUrlParameterValue("title");
		var  key = gUrlObj.getUrlParameterValue("key");
		var  name = gUrlObj.getUrlParameterValue("name");
		var  graph_width = gUrlObj.getUrlParameterValue("graph_width");
		var  graph_height = gUrlObj.getUrlParameterValue("graph_height");

		if(action == undefined) action = "arbreq";
		if(action == "netflowSummary") action = "netflowIfSummary";
		if(typeof arbfile != "undefined")
 		  open(urlBase + "&action="+action+"&which=graph&key="+key+"&name="+name+"&arbfile=" + arbfile + "&graphId=" + graphId + "&arbiface=" + arbiface + "&start=" + newGraphStart + "&end=" + newGraphEnd + "&title=" + title + "&graph_width=" + graph_width + "&graph_height=" + graph_height +"&mode=zoom", "_self");
		else
		  open(urlBase + "&action="+action+"&which=graph&key="+key+"&name="+name+"&graphId=" + graphId + "&start=" + newGraphStart + "&end=" + newGraphEnd + "&title=" + title + "&graph_width=" + graph_width + "&graph_height=" + graph_height +"&mode=zoom", "_self");
			}
		}
	}
}

/*+++++++++++++++++++++++++++  windowOnResizeEvent  +++++++++++++++++++++++++*/

function windowOnResizeEvent() {
	gZoomGraphObj.refresh();
}