function popup(win,img,folder,w,h){
var hw = "height=" + h + ",width=" + w;
var pop = window.open("popup.htm", win, hw );
if (document.all){
pop.document.write('Preview![](\"')
');
pop.focus();
}
if (document.layers){
pop.document.open();
pop.document.write('Preview');
pop.document.close();
pop.focus();
}
}