function hasClassName(obj, className){
	var classNameArray = obj.className.split(' ');

	for(var i = 0; i < classNameArray.length; i++){
		if(classNameArray[i] == className){
			return true;
		}
	}

	return false;
}

//
// addLoadEvent()
// Adds event to window.onload without overwriting currently assigned onload functions.
// Function found at Simon Willison's weblog - http://simon.incutio.com/
//
function addLoadEvent(func){
	var oldonload = window.onload;
	if(typeof window.onload != 'function'){
		window.onload = func;
	}else{
		window.onload = function(){
			oldonload();
			func();
		}
	}
}