var DL_bNS4=(document.layers);
var DL_bNS6 = (navigator.vendor == ("Netscape6") || navigator.product == ("Gecko"));
var DL_bDOM=(document.getElementById);
var DL_bIE=(document.all);
var DL_bIE4=(DL_bIE && !DL_bDOM);
var DL_bMac = (navigator.appVersion.indexOf("Mac") != -1);
var DL_bIEMac=(DL_bIE && DL_bMac);
var DL_bIE4Mac=(DL_bIE4 && DL_bMac);
var DL_bNS =(DL_bNS4 || DL_bNS6);

function windowWidth() { 
	if (window.innerWidth != null){ return window.innerWidth; }    
	if (document.body.clientWidth != null) { return document.body.clientWidth;  }    
	return (0);    
}

function windowHeight() {
	if (window.innerHeight != null){ return window.innerHeight; }    
	if (document.body.clientHeight != null) { return document.body.clientHeight;  }    
	return (0);    
}

function objGetScreenLeft(oElement) 
{
	var  lA = window.screenY? window.screenY: window.screenTop;
	return objGetRealLeft(oElement) + lA; 
}

function findPosition( oLink ) {
	if( oLink.offsetParent ) {
		for( var posX = 0, posY = 0; oLink.offsetParent; oLink =
				oLink.offsetParent ) {
			posX += oLink.offsetLeft;
			posY += oLink.offsetTop;
		}
		this.x = posX;
		this.y = posY;
		return this;
	} else {
		this.x = oLink.x;
		this.y = oLink.y;
		return this;
	}
}
function objGetRealLeft(oElement)
{
	var nXPos = oElement.offsetLeft;
	var oParentEl = (DL_bIE4Mac) ? oElement.parentElement : oElement.offsetParent;

	while (oParentEl != null)
	{
		if(DL_bIE4Mac)
		{
			if(oParentEl.tagName=="SPAN")
			{
				oParentEl = oParentEl.parentElement;
			}
			if(oParentEl.tagName=="HTML")
			{
				break;
			}
		}

		nXPos += oParentEl.offsetLeft;
		oParentEl = (DL_bIE4Mac) ? oParentEl.parentElement : oParentEl.offsetParent;
	}
	return nXPos;

}


function objGetScreenTop(oElement) 
{
	var  tA = window.screenY? window.screenY: window.screenTop;
	return objGetRealTop(oElement) + tA; 
}
function objGetRealTop(oElement)
{
	var nYPos = oElement.offsetTop;
	var oParentEl = (DL_bIE4Mac) ? oElement.parentElement : oElement.offsetParent;
	while (oParentEl != null)
	{
		if(DL_bIE4Mac)
		{
			if(oParentEl.tagName=="SPAN")
			{
				oParentEl = oParentEl.parentElement;
			}
			if(oParentEl.tagName=="HTML")
			{
				break;
			}
		}
		nYPos += oParentEl.offsetTop;
		oParentEl = (DL_bIE4Mac) ? oParentEl.parentElement : oParentEl.offsetParent;
	}
	return nYPos;
}

function confirmSubmit()
{
var agree=confirm("Are you sure?");
if (agree)
	return true ;
else
	return false ;
}