window.onscroll = function()
{
   	var iebody=(document.compatMode && document.compatMode != "BackCompat")? document.documentElement : document.body
	var dsoctop=document.all? iebody.scrollTop : pageYOffset
   
    $('#sticky_header').css('top',dsoctop);
    $('#livehelp').css('top',dsoctop + 45);
     
}