function onload(event){
		function _attach(event){
			if(window.addEventListener)
				window.addEventListener('load', event, false);
			else if (window.attachEvent)
				window.attachEvent('onload', event);
			else
				window.onload+=event;
		}
		if(event.constructor.toString().indexOf('Array')!=-1)
		for(i=0; i<event.len; i++)
			_attach(event[i]);
		else
			_attach(event);
	}