function openwin(img,w,h,title)
{
var hWnd;
if(hWnd!=null) hWnd.close();
hWnd=window.open(img,"","toolbar=no,location=no,directories=no,resizable=yes,scrollbars=yes,left=100,top=100,width="+w+",height="+h);
hWnd.document.open();
hWnd.document.write(""+title+"");
hWnd.document.write("");
hWnd.document.write("");
hWnd.document.close();
}