function imgWin(img){
	var scr='/images/preview.htm';
	var x = screen.width/2 - 400/2;
	var y = screen.height/2 - 300/2;
	var wn=window.open(scr+'?'+escape(img),'win','resizable,width=400,height=300,top='+y+',left='+x+',screenX='+x+',screenY='+y+',status=0');
	wn.focus();
	return false;
}