function popup(src, w, h)
{
    var imgbox=document.getElementById("imgbox");
    imgbox.style.visibility='visible';

	var img = document.createElement("img");
    img.src=src;
	img.width=w;
	img.height=h;
	img.style.cursor="pointer";
	img.style.border="none";
	//img.style.marginBottom=0;
    
    if(img.addEventListener)
        img.addEventListener('click',Out,false);
    else 
        img.attachEvent('onclick',Out);
    
    imgbox.innerHTML='';
    imgbox.appendChild(img);
  	
	var clientWidth=document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body.clientWidth;
	var clientHeight=document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight;
	var borderWidth=2;
	
	//imgbox.style.marginLeft=((clientWidth-w)/2-borderWidth-6)+"px";
	//imgbox.style.marginTop=((clientHeight-h)/2-borderWidth-6)+"px";
	//alert(imgbox.style.marginTop);
	
}

function Out()
{
    document.getElementById("imgbox").style.visibility='hidden';
}