window.onload = function (){
	id = window.location.search.parseQuery();
   id = (id.tabID)? id.tabID : "Performance";
	toggleDetailDiv(id);
}

  window.onscroll = function(e){


	var x,y;
	headerPos = document.getElementById('tabContents').offsetTop + 150; //Added here for All browsers
	if (self.pageYOffset) // all except Explorer
	{
		x = self.pageXOffset;
		y = self.pageYOffset;
		
		headerPos = document.getElementById('tabContents').offsetTop + 90; //Overriding for FF
	}
	else if (document.documentElement && document.documentElement.scrollTop)
		// Explorer 6 Strict
	{
		x = document.documentElement.scrollLeft;
		y = document.documentElement.scrollTop;
		headerPos = document.getElementById('tabContents').offsetTop + 250; //Overriding for IE6
		
	}
	else if (document.body) // all other Explorers
	{
		//$$('div.fixedTableHeader').setStyle({position:fixed});
		x = document.body.scrollLeft;
		y = document.body.scrollTop;
		
	}
	
	//headerPos = document.getElementById('tabContents').offsetTop + 50; Removed this element
	if (y < headerPos){
		$$('#tabContents div.fixedTableHeader').invoke('hide');
	} else {
		$$('#tabContents div.fixedTableHeader').invoke('show');
	}
	

}