//----------------------------------------------------------
// Browser Detection
//----------------------------------------------------------
isMac = (navigator.appVersion.indexOf("Mac")!=-1) ? true : false;
NS4 = (document.layers) ? true : false;
IEmac = ((document.all)&&(isMac)) ? true : false;
IE4plus = (document.all) ? true : false;
IE4 = ((document.all)&&(navigator.appVersion.indexOf("MSIE 4.")!=-1)) ? true : false;
IE5 = ((document.all)&&(navigator.appVersion.indexOf("MSIE 5.")!=-1)) ? true : false;
ver4 = (NS4 || IE4plus) ? true : false;
NS6 = (!document.layers) && (navigator.userAgent.indexOf('Netscape')!=-1) ? true:false;

//----------------------------------------------------------
// Find the bottom of the page
//----------------------------------------------------------
function calcBottomOfPage(flag) {

	var bottomOfPage = 0;
	var divElements = document.getElementsByTagName('div');
	for(i = 0; i < divElements.length; i++) {
		var thisDiv = divElements[i];
		var tempTop = 0;
		if (flag) {
			while (thisDiv != null) {
				tempTop += thisDiv.offsetTop;
				thisDiv = thisDiv.offsetParent;
			}
		}
		if((divElements[i].offsetHeight + tempTop) > bottomOfPage) {
			bottomOfPage = divElements[i].offsetHeight + tempTop;
		}
	}
	return bottomOfPage;
}

//----------------------------------------------------------
// Position the footer
//----------------------------------------------------------
if(! self.positionDivisions){
positionDivisions = function() {
	
		var bottomPos = 0;
		
		// Calculate the bottom of the page
		bottomPos = calcBottomOfPage(true) - 25;
		var disclaimer = document.getElementById("disclaimer");
		if (disclaimer != null) {
			disclaimer.style.top = bottomPos + "px";
			disclaimer.style.visibility = "visible";
			bottomPos = bottomPos + disclaimer.offsetHeight;
		}
	
		var footer = document.getElementById("footer");
		if (footer != null) {
			var browserHeight = getBrowserHeight();
			var footerTop = bottomPos;
			var footerHeight = footer.offsetHeight;
	
			footer.style.top = bottomPos + "px";
			if ((footerTop + footerHeight) < browserHeight) {
				footerHeight = browserHeight - footerTop;
				footer.style.height = footerHeight + "px";
			}
	
			footer.style.visibility = "visible";
		}	
	}
}

if(! self.repositionDivisions){
repositionDivisions = function(height) { 
	
		var bottomPos = 0;
		if (!height) {
			height = 140;
		}
		
		// Calculate the bottom of the page
		bottomPos = calcBottomOfPage(false) - 25;
		bottomPos += height;
		var column1 = document.getElementById("column1");
		var column2 = document.getElementById("column2");
		var column3 = document.getElementById("column3");
		var beColumn1 = document.getElementById("BEColumn1");
		var minTop = 0;
		if (column1 && column2 && column3) {
			col1Y = column1.offsetTop + column1.offsetHeight;
			col2Y = column2.offsetTop + column2.offsetHeight;
			col3Y = column3.offsetTop + column3.offsetHeight;
			minTop = Math.max(col1Y, Math.max(col2Y, col3Y));
		} else if (beColumn1) {
			minTop = beColumn1.offsetTop + beColumn1.offsetHeight;
		}
		var disclaimer = document.getElementById("disclaimer");
		if (disclaimer != null) {
			var browserHeight = getBrowserHeight();
			var disclaimerTop = bottomPos;
			var disclaimerHeight = disclaimer.offsetHeight;
			disclaimer.style.top = (bottomPos > minTop ? bottomPos : minTop) + "px";
			bottomPos = (bottomPos > minTop ? bottomPos : minTop) + disclaimerHeight;
			if ((disclaimerTop + disclaimerHeight) < browserHeight) {
				disclaimerHeight = browserHeight - disclaimerTop;
				disclaimer.style.height = disclaimerHeight + "px";
			}
			disclaimer.style.visibility = "visible";
		}
	
		var footer = document.getElementById("footer");
		if (footer != null) {
			var browserHeight = getBrowserHeight();
			var footerTop = bottomPos;
			var footerHeight = footer.offsetHeight;
			footer.style.top = (bottomPos > minTop ? bottomPos : minTop) + "px";
			if ((footerTop + footerHeight) < browserHeight) {
				footerHeight = browserHeight - footerTop;
				footer.style.height = footerHeight + "px";
			}
			footer.style.visibility = "visible";
		}
	}
}

//----------------------------------------------------------
// Body onload utility (supports multiple onload functions)
//----------------------------------------------------------
var gSafeOnload = new Array();
function SafeAddOnload(f)
{
	if(IEmac && IE4)  // IE 4.5 blows out on testing window.onload
	{
		window.onload = SafeOnload;
		gSafeOnload[gSafeOnload.length] = f;
	}
	else if(window.onload)
	{
		if(window.onload != SafeOnload)
		{
			gSafeOnload[0] = window.onload;
			window.onload = SafeOnload;
		}
		gSafeOnload[gSafeOnload.length] = f;
	}
	else
		window.onload = f;
}

//----------------------------------------------------------
// Provides safe onload function
//----------------------------------------------------------
function SafeOnload()
{
	for (var i=0;i<gSafeOnload.length;i++)
		gSafeOnload[i]();
}

//----------------------------------------------------------
// Returns width of the browser window
//----------------------------------------------------------
function getBrowserWidth() {
	var browserWidth = 0;
	if (typeof(window.innerWidth) == 'number') {
    	//Non-IE
    	browserWidth = window.innerWidth;
	} else if (document.documentElement && document.documentElement.clientWidth) {
    	//IE 6+ in 'standards compliant mode'
    	browserWidth = document.documentElement.clientWidth;
	} else if (document.body && document.body.clientWidth) {
    	//IE 4 compatible
    	browserWidth = document.body.clientWidth;
	}
	return browserWidth;
}

//----------------------------------------------------------
// Returns height of the browser window
//----------------------------------------------------------
function getBrowserHeight() {
	var browserHeight = 0;
	if (typeof(window.innerHeight) == 'number') {
    	//Non-IE
    	browserHeight = window.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) {
    	//IE 6+ in 'standards compliant mode'
    	browserHeight = document.documentElement.clientHeight - 35;
	} else if (document.body && document.body.clientHeight) {
    	//IE 4 compatible
    	browserHeight = document.body.clientHeight;
	}
	return browserHeight;
}

//----------------------------------------------------------
// Position the footer at the bottom of the page upon
// page load.  Templates using nested div tags may require 
// nested=true to render properly
//----------------------------------------------------------
SafeAddOnload(positionDivisions);