/*
 * 
 * 
 * 
 * 
*/
		  
function display_img_window()
{
	document.getElementById('overlay').style.display="block";
	document.getElementById('lightbox').style.display="block";
	return true;
}
function hide_img_window()
{
	document.getElementById('overlay').style.display="none";
	document.getElementById('lightbox').style.display="none";
	return true;
}