function CenterObjectOnScreen(id) {
	if ($(id)) {
		var StepVertical = 0;
		var StepHorizontal = 0;
		
		if ($(id).clientWidth < window.document.body.clientWidth) {
			StepHorizontal = (window.document.body.clientWidth - $(id).clientWidth)/2;
		}
		
		if ($(id).clientHeight < window.document.body.clientHeight) {
			StepVertical = (window.document.body.clientHeight - $(id).clientHeight)/2;
		}
		
		$(id).style.position = "absolute";
		$(id).style.top = StepVertical+pxStr;
		$(id).style.left = StepHorizontal+pxStr;
		$(id).style.right = StepHorizontal+pxStr;
	}
}

function isNumberKey(evt) {
	var charCode = (evt.which) ? evt.which : evt.keyCode
	if (charCode > 31 && (charCode < 48 || charCode > 57)) return false;
	return true;
}

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: "Chrome",
			identity: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			prop: window.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.userAgent,
			   subString: "iPhone",
			   identity: "iPhone/iPod"
	    },
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]
	
};

BrowserDetect.init();

var pxStr = "px";
if (BrowserDetect.browser == "Explorer" && BrowserDetect.version < 8) pxStr = "";

function getMousePosition(e) {
	if (BrowserDetect.browser == "Explorer") {
		  x = event.clientX;
		  y = event.clientY;
	} else {
		  x = (window.Event) ? e.pageX : event.clientX;
		  y = (window.Event) ? e.pageY : event.clientY;
	}

  
  return {x: x, y: y};
  //document.ee.sd.value = x+":"+y;
}