function displayImage(imageLoc) {
		var iframe;
		var iframeName = 'imgFrame';
		closeImage();
		iframe = document.createElement('iframe');
		iframe.name = iframeName;
		iframe.id = iframeName;
		iframe.width = 0;
		iframe.height = 0;
		iframe.borderframe = 1;
		iframe.src = 'image.php?img='+imageLoc;
		iframe.style.visibility="visible";
		iframe.style.display="block";
		iframe.style.left = 100+"px";
		iframe.style.top = 200+"px";
		iframe.style.position="absolute";
		iframe.style.overflow="auto";
		iframe.allowtransparency = "false";
		document.body.appendChild(iframe);
//		return iframe;
}
function closeImage() {
	var frameId = 'imgFrame';
	while(document.getElementById(frameId) != null) {
		var frame = document.getElementById(frameId);
		if(frame != null) {
			var parentElem = document.getElementById(frameId).parentNode;
			parentElem.removeChild(frame);
		}
	}
}
function resizeImage(pwidth,pheight) {
		var iframe;
		var iframeName = 'imgFrame';
		iframe = document.getElementById(iframeName);
		iframe.style.width = pwidth+40+"px";
		iframe.style.height = pheight+60+"px";
//		alert('resized iframe to '+pwidth+','+pheight); 
		return iframe;
}