function showImg(img,imgw,imgh){
	// get client dimentions
	width = document.viewport.getDimensions().width;
	wheight = document.viewport.getDimensions().height;
	
	$('imgBlanket').style.height=wheight + "px";
	$('imgBlanket').style.width=width + "px";
	$('imgBlanket').style.display='block';
	
	var left = (width - imgw) / 2;
	var top = (wheight - imgh) / 2;
	
	if(left < 12) left=12;
	if(top < 12) top=12;
	
	var txt='<a href="javascript:hideImg();"><img id="imgPopupClose" src="images/del.png" alt="" title="Close" /></a>';
	txt = txt + '<a href="javascript:hideImg();"><img src="' + img + '" alt="" width="100%" border="0" /></a>';
	
	$('imgPopup').innerHTML=txt;
	$('imgPopup').style.width=imgw + 'px';
	$('imgPopup').style.height=imgh + 'px';
	$('imgPopup').style.left=left + 'px';
	$('imgPopup').style.top=top + 'px';
	//$('imgPopup').click(function() { hideImg(); });
	$('imgPopup').style.display='block';
}


function hideImg(){
	$('imgBlanket').style.display='none';
	$('imgPopup').style.display='none';
}