function open_win(product,WinWidth,WinHeight){
	
	var ScreenWidth=window.screen.width;
    var ScreenHeight=window.screen.height;
    var movefromedge=0;
    placementx=(ScreenWidth/2)-((400)/2);
    placementy=(ScreenHeight/2)-((300+50)/2);
	PopUpUrl = "products/big/"+product+".jpg";
    WinPop=window.open(PopUpUrl,"","width="+WinWidth+",height="+WinHeight+",toolbar=0,location=0,directories=0,status=0,scrollbars=0,menubar=0,resizable=0,left="+placementx+",top="+placementy+",screenX="+placementx+",screenY="+placementy+","); 
	


}