function switchContent(tab)
{	
	var sImg = document.getElementById('course');
	var nImg = document.getElementById('news');
	if (tab == 't1') 
	{
		sh=1
		var element = document.getElementById(tab);
		var element2 = document.getElementById('t2');
		if(element && element.style)
		{
			element.style.display="";
			element2.style.display="none";
			sImg.className="sCoursesTab";
			nImg.className="newsTab";
			//showHide.value="Hide All Records";
		}
	} 
	if (tab == 't2') 
	{
		sh=0
		var element = document.getElementById(tab);
		var element2 = document.getElementById('t1');
		if(element && element.style)
		{
			element.style.display="block";
			element2.style.display="none";
			sImg.className="sCoursesTab2";
			nImg.className="newsTab2";
			//showHide.value="Show All Records";
		}
	}
}