function addLoadEvent(func) { 

	var oldonload = window.onload; 
	if (typeof window.onload != 'function') { 
		window.onload = func; 

	} else { 
		window.onload = function() { 
			if (oldonload) { 
				oldonload(); 

			} 
			func();
		} 
		
	} 
}

if(document.getElementById && document.createTextNode) {
	//addLoadEvent(addFunc); 
	//addLoadEvent(changeMenu); 
	//addLoadEvent(checkSignIn);
	//addLoadEvent(selectedState); 
	//addLoadEvent(searchSubmit);
	addLoadEvent(checkOS); 
	addLoadEvent(checkref);
	addLoadEvent(newWin); 
}