function showEventTooltip(eventDivId, containerDivId)
{
  hideAllEventDivs(containerDivId);
  var link = document.getElementById(eventDivId);
  if(link != null)
  {  
     link.className = "visibleEventTooltipeventDiv";
  }
}
function hideEventTooltip(eventDivId)
{
    var link = document.getElementById(eventDivId);
    if(link != null)
    {
        link.className = "hiddenEventTooltipeventDiv";
    }
}
function changeDivClasses(containerDivId, newclass)
{
    var container = document.getElementById(containerDivId);
    if (container != null)
    {
       
        for (var i= 0, c; (c = container.getElementsByTagName('div')[i]); i++)
        {
            if(c != null)
             {
                c.className =  newclass;
             }
        }
    }
}
function hideAllEventDivs(containerDivId)
{
    changeDivClasses(containerDivId, 'hiddenEventTooltipeventDiv');
}
function removeBorders(containerDivId)
{
    changeDivClasses(containerDivId, 'normalImageDiv');
}
function highLightImage(imageDivId, imageContainerId)
{
  removeBorders(imageContainerId);  
  var imageDiv = document.getElementById(imageDivId);
  
  //alert(imageDivId);
  
  if(imageDiv != null)
  {
    imageDiv.className = 'highlightedImageDiv';
    
  }
}