function changeClass(el,cl){
	var obj;
	obj = document.getElementById(el);
	obj.className = cl;				
}
		
function setVisibleContent(id){
	changeClass(id, 'sVisible');								
}
			
function setHiddenContent(id){
	changeClass(id, 'sHidden');
}
		
function setContent(cvisible, chidden){
	setVisibleContent(cvisible);
	setHiddenContent(chidden);				
}

function hideNonDefault(){
	setContent('tabContentFirst', 'tabContentSecond','tabContentThird');
}

function switchSelected(selTab, normalTab, selectedClass, normalClass)
{
	document.getElementById(selTab).className = selectedClass;
	document.getElementById(normalTab).className = normalClass;
}

//window.onload = hideNonDefault;