// some information from our users environment
var agt = navigator.userAgent.toLowerCase();
var is_opera = (agt.indexOf('opera') != -1);
var is_msie = (agt.indexOf('msie') != -1 && !is_opera );

var oldBrowser = false;
var isNS4 = false;
var isNS6 = false;
var isIE4 = false;
var isIE5 = false;
var xPosition = 0;

if ( parseInt( navigator.appVersion ) < 4 ) {
	oldBrowser = true
} else {	
	isNS4 = (document.layers) ? true : false;
	isIE4 = (document.all && !document.getElementById) ? true : false;
	isIE5 = (document.all && document.getElementById) ? true : false;
	isNS6 = (!document.all && document.getElementById) ? true : false;
}

function findPosX(obj) {
	var curleft = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	}
	else if (obj.x)
		curleft += obj.x;
	return curleft;
}

function GetImageXPos(imgId){
	
	if( isIE5 || isNS6 ){
		
		xPosition = findPosX( document.getElementById(imgId) );
	} else if(isNS4){
		
	} else {
		xPosition = findPosX( document.all[imgId] )
	}
	
	return (xPosition);
}