var common = {
	
		addStartupEvent : function(callback){
			if (window.attachEvent){
				window.attachEvent('onload', callback);
				//document.body.attachEvent('onload', callback);
			} else {
				window.addEventListener('load', callback, false);
			}
		},
		
		confirmRedirect : function(message, url){
			common.confirmAction(message, function(){document.location = url;});
		},
		
		confirmAction : function(message, func){
			if (confirm(message)){
				func();
			}
		}
	
	}