function showdiv() { 
	display_frame=getEle('display_frame');
	framecell=getEle('framecell');
	try { display_frame.document.attachEvent('oncontextmenu',rightclick); } catch(err) { }
	try { var s=display_frame.document.body.innerHTML; } catch(err) { var s=display_frame.src; }
	if (s!='') {
		try { var b=display_frame.document.getElementById('bottom'); } catch(err) {
			var b=window.frames[0].document.getElementById("bottom");
		}
		if (b==null) var b=window.frames[0].document.getElementById("bottom");
		var hgt=b.offsetTop;
		var wdth=framecell.offsetWidth;
		framecell.height=hgt;
		try { display_frame.resizeTo(wdth,hgt); } catch(err) { display_frame.height=hgt; }
	}
}