/*
	author		Jeroen Butenaerts (formfab.nl)
	copyright	Jeroen Butenaerts (formfab.nl)
				Simon Willison (simonwillison.net)
*/
function setOnloadEvent(Function_in){
	var OldOnload = window.onload;
	if(typeof window.onload != 'function'){
	window.onload = Function_in;
	}
	else{
		window.onload = function(){
			if(OldOnload){ OldOnload(); }
			Function_in();
		}
	}
}
function AddUnloadEvent(Function_in){
	var OldOnunload = window.onunload;
	if(typeof window.unonload != 'function'){
	window.unonload = Function_in;
	}
	else{
		window.unonload = function(){
			if(OldOnunload){ OldOnunload(); }
			Function_in();
		}
	}
}