var bPageLoad = true;

function elem(name)
{
  try 
  {
    return (document.getElementById(name))
  }
  catch(err)
  {
    alert(err)
    return null
  }
}
  
function isMSIE()
{
  var agt = navigator.userAgent.toLowerCase()
  
  if (agt.indexOf("msie") != -1)
  {
    return true
  }
  return false
}

function PlayMedia(mediaName)
{
  if (isMSIE())
  {
    mainform.mp.url = mainform.mediaRoot.value + mediaName
    //alert(mainform.mediaRoot.value + mediaName)
    mainform.mp.controls.play()
  }
  else
  {
    elem('wmp').controls.stop()
    elem('wmp').controls.stop()
    elem('wmp').src = elem('mediaRoot').value + mediaName
    //alert(mainform.mediaRoot.value + mediaName)
    elem('wmp').controls.play()
    elem('wmp').controls.play()
  }
}

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