function doHelp(evt, helpText) {
  var x=y=thisHeight=0;
  var insertText = '<table border="0" cellspacing="0" cellpadding="1" bgColor="#000000"><tr><td><table border="0" cellspacing="0" cellpadding="4" bgcolor="#ffffff"><tr><td><font class="helpPopup">' + helpText + '</font></td></tr></table></td></tr></table>'
  if (evt != '') {
    if (!clientis_IE4) {
      x = evt.pageX+22;
      y = evt.pageY-20;
      
      thisHeight = document.height;
    } else {
      x = Math.max(evt.clientX+20, 3);
      y = Math.max(evt.clientY-9, 3);
      
      if (!clientis_Nav5plus) 
        thisHeight = document.body.clientHeight;
      else {
        thisHeight = window.innerHeight;
      }
    }
  }

  if (thisHeight > 0) {
    y = Math.min(thisHeight-26,y)        
    x = Math.max(x, 3);
    y = Math.max(y, 0);
  }
  
  if (!clientis_IE4) {
    document.layers.helpBox.document.write (insertText);
    document.layers.helpBox.document.close();
  } else {
    documentAll.helpBox.innerHTML = insertText;
  }
  
  moveTo( documentAll.helpBox, y, x )
  showHide (documentAll.helpBox, 'visible');
}    

function moveTo(moveThis, moveTop, moveLeft) {
  if (clientis_Nav4){
    moveThis.top = moveTop;
    moveThis.left = moveLeft;
  }else{
    if(clientis_Nav5plus){ 
      moveThis.style.top = moveTop;
      moveThis.style.left = moveLeft;
    }else{
      moveThis.style.pixelTop = moveTop;
      moveThis.style.pixelLeft = moveLeft;
    }
  }
}

function showHide (layerStr, showHideStr, dontFlipDisplay) {
  if (document.layers){
    layerStr.visibility = showHideStr;
  }else{
    layerStr.style.visibility = showHideStr;
    layerStr.style.display = ((showHideStr.toLowerCase() == 'visible')&&(!dontFlipDisplay)) ? 'inline' : 'none' ;
  }
}