function getWindowHeight() {
			var windowHeight = 0;
			if (typeof(window.innerHeight) == 'number') {
				windowHeight = window.innerHeight;
			}
			else {
				if (document.documentElement && document.documentElement.clientHeight) {
					windowHeight = document.documentElement.clientHeight;
				}
				else {
					if (document.body && document.body.clientHeight) {
						windowHeight = document.body.clientHeight;
					}
				}
			}
			return windowHeight;
		}
		function setFooter() {

	var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		},
		{
			prop: navigator.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();


			if (document.getElementById) {
				var windowHeight = getWindowHeight();
				if (windowHeight > 0) {
					var contentElement = document.getElementById('container')
					var contentHeight = contentElement.offsetHeight;
					var footerElement = document.getElementById('footer');
					var footerHeight  = footerElement.offsetHeight;
					<!-- alert("Help - window = " + windowHeight + " content = " + contentHeight + " footer = " + footerHeight + " result = " + (windowHeight - (contentHeight + footerHeight - 17)));	
					if (windowHeight - (contentHeight + footerHeight - 24) >= 0) {
						switch ( BrowserDetect.browser ) {	
							case "Firefox":
								<!-- alert("Help - window = " + windowHeight + " content = " + contentHeight + " footer = " + footerHeight + " result = " + (windowHeight - (contentHeight + footerHeight - 17)));
								footerElement.style.top = (windowHeight - contentHeight - 4 ) + 'px';
								contentElement.style.height = (windowHeight - 10) + 'px';
								break
							case "Explorer": 
								<!-- footerElement.style.top = (windowHeight - contentHeight + 194) + 'px';
								<!-- alert("Help - window = " + windowHeight + " content = " + contentHeight + " footer = " + footerHeight + " result = " + (windowHeight - contentHeight));
								footerElement.style.top = (windowHeight - contentHeight - 4 ) + 'px';
								contentElement.style.height = (windowHeight - 10) + 'px';
								<!-- alert("Help - window = " + windowHeight + " content = " + contentHeight + " footer = " + footerHeight + " result = " + (windowHeight - contentHeight));
								break
							default:
								footerElement.style.top = (windowHeight - contentHeight + 194) + 'px';
								break
						}
						<!-- alert("Footer top set to  = " + (windowHeight - contentHeight + 100)); -->
					}
					else {
						footerElement.style.top = '0px';
					}
				}
			}
		}

window.onload = function() {
			setFooter();
		}