document.getElementById('middle').innerHTML ="<iframe align=\"top\" frameborder=\"0\" scrolling=\"auto\" width=\"100%\" height=\"400\" name=\"ifr\" id=\"ifr\" ></iframe>"
var IFrameObj;
IFrameObj = frames['ifr'];

function openpopup(url,w,h,heading){
document.getElementById('overlay').style.display ='block';
document.getElementById('popcontent').style.display ='block';
document.getElementById('top').style.width = w +8+"px"
document.getElementById('middle').style.width = w+"px"
document.getElementById('middle').style.height = h+"px"
document.getElementById('ifr').style.height = h+"px"
document.getElementById('info').innerHTML = heading;
IFrameObj.location.href=(url);
}
function closeme(){
document.getElementById('overlay').style.display ='none';
document.getElementById('popcontent').style.display ='none';
}
// usage instruction – openpopup(url,width,height,heading);
//openpopup(urle,800,700,'Page Heading');