function getWindowHeight()
{
   var myWidth = 0, myHeight = 0;
   if( typeof( window.innerWidth ) == 'number' )
   { //Non-IE
      myHeight = window.innerHeight;
   }
   else
   {
      if ( document.documentElement && ( document.documentElement.clientWidth ||    document.documentElement.clientHeight ) )
   { //IE 6+ in 'standards compliant mode'
      myHeight = document.documentElement.clientHeight;
   }
   else
   {
      if ( document.body && ( document.body.clientWidth || document.body.clientHeight ) )
      { //IE 4 compatible
         myHeight = document.body.clientHeight;
      }
   }
}
   return myHeight;
}


function setDivHeight()
{
    var contentdiv = document.getElementById("contentArea")
    if (contentdiv != null)
        contentdiv.style.height = getWindowHeight()*0.65

}