function poplay(vPop,vLay,vTopHeight,vLeftWidth){
	var vWidth;
	var vHeight;
	var oPop=document.getElementById(vPop);
	var oLay=document.getElementById(vLay);

	if(navigator.appName=="Microsoft Internet Explorer"){
		vWidth=oLay.offsetLeft+vLeftWidth;
	}else{
		vWidth=(document.body.offsetWidth-oLay.width)/2+vLeftWidth;
	}
	
	var vHeight=oLay.offsetTop-vTopHeight;
	
	oPop.style.position='absolute';
	oPop.style.top=vHeight+'px';
	document.getElementById(vPop).style.left=vWidth+'px';
}
function closepoplay(vPop){
	var oPop=document.getElementById(vPop);
	oPop.style.zIndex='-999';
	oPop.style.display='none';
}