function show_img(img,width,height,adm,title)
{
   var a;
   var b;
   var url;
   
   vidWindowWidth=width;
   vidWindowHeight=height;
   a=(screen.height-vidWindowHeight)/5;
   b=(screen.width-vidWindowWidth)/2;
   if(title!='' || title!=null) {
   		vidWindowHeight = vidWindowHeight + 20;		
		if(vidWindowWidth<170 && title.length > 14) {
			vidWindowHeight = vidWindowHeight + 20;
		}
   }
   
   features="top="+a+",left="+b+",width="+vidWindowWidth+",height="+vidWindowHeight+",toolbar=no, menubar=no, location=no, directories=no, scrollbars=no, resizable=no";
   if (adm=='true') {    		
		url="../../show.php?img="+img + "&title="+title;		
	} else {
		url="show.php?img="+img + "&title="+title;
	}
   var child = window.open(url,'',features,true);   
}