function gallery_zoom(url,name,width,height){
  	var l = (screen.width - width) / 2;
  	if(screen.width <= width){
  		width=screen.width;
  	}
  	if(screen.height <= height){
  		height=screen.height;
 	 	var t = 0;
  		var scroll = 1;
  	}else{
  		var t = (screen.height - height) / 2;
  		var scroll = 1;
  	}
	mewin=window.open(url,name,'toolbar=0,location=0,top='+t+',left='+l+',directories=0,status=0,'+'menubar=0,scrollbars='+scroll+',resizable=1,width='+width+',height='+height);
}

var mywin = null;

function openit(uri, w, h, s){
	var l = (screen.width - w) / 2;
	var t = ((screen.height - h) / 2) - 30;

	wprops = 'toolbar=0,location=0,top='+t+',left='+l+',directories=0,status=1,'+'menubar=0,scrollbars='+s+',resizable=0,width='+w+',height='+h;
	
	mywin = window.open(uri, "", wprops);
	mywin.focus();
}

function closechild(){
	if(mywin != null){
		mywin.close();
		mywin = null;
	}
}