var bPageLoad = true;

          function PlayMedia(mediaName)
          {
            mainform.mp.url = mainform.mediaRoot.value + mediaName
            //alert(schedform.mediaRoot.value + mediaName)
            mainform.mp.controls.play()
          }

          function OpenWindow(url, name, parms)
          {
            if (bPageLoad)
            {
              window.open(url,name,parms)
              //alert(url)
            }  
            else
            {
              bPageLoad = true
            }
          }