browser_name = navigator.appName;
      browser_version = parseFloat(navigator.appVersion); 

      if (browser_name == "Netscape" && browser_version >= 3.0) { roll = 'true'; }
      else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 4.0) { roll = 'true'; }
      else { roll = 'false'; }

      if (roll == 'true') {

      var imglist = new Array (
"strresourcesurl/images/ctx_question_inactive.gif",
"strresourcesurl/images/ctx_question_active.gif"
      );
      var imgs = new Array();

      var count;
      if (document.images)
       for (count=0; count<imglist.length; count++)
        {imgs[count]=new Image(); imgs[count].src=imglist[count];}
      }
function msover1(img,ref) { if (roll == 'true') { document.images[img].src = ref; } }
function msout1(img,ref)  { if (roll == 'true') { document.images[img].src = ref; } }