function browserTest(aHTMLfile) {
if (navigator.appName == 'Netscape' && parseFloat(navigator.appVersion) >= 3)
   {
    putInWindow(aHTMLfile);
   }
else {
       if (navigator.appName == 'Microsoft Internet Explorer'  && parseFloat(navigator.appVersion) >= 4)
       {
         putInWindow(aHTMLfile);
       }

     }
}

 function putInWindow(theHTMLfile) {
    
   _PhotoWindow = window.open(theHTMLfile, '_PHOTO', 'width=700,height=500');
   _PhotoWindow.focus();

 }