function KeyDownHandler(objId)
{
	if (event.keyCode == 13) // enter key was pressed
	{
		event.returnValue=false;
		event.cancel = true;					
		__doPostBack(document.getElementById(objId).name.replace(":","$"));
	}
}

function preloadImg(imgObj, imgSrc){
	eval(imgObj+'=new Image()');
	eval(imgObj+'.src="'+imgSrc+'"');
}

function preloadImgRetval(imgSrc){
	var imgObj=new Image();
	imgObj.src=imgSrc;
	return imgObj;
}

function swapImg(layer, imgObj, imgName){
	if (document.images){
		if (document.layers && layer!=null) eval('document.'+layer+'.document.images["'+imgName+'"].src='+imgObj+'.src');
		else document.images[imgName].src=eval(imgObj+'.src');
	}
}