function popup_image(id, width, height, object_id) {
	winName=id;
	W=width+20;
	H=height+20;
	var left=Math.round((screen.width-W)/2)+"px";
	var top=Math.round((screen.height-H)/2)+"px";
	/*var left="100px";
	var top="120px";*/
	window.open('index.php?module=gallery&do=view_image&image_id='+id+'&object_id='+object_id,winName,"scrollbars=yes,width="+W+",height="+H+", top="+top+", left="+left);
}