onload = function(){
			FuncUnit.win.document.documentElement.tabIndex = 0;
			setTimeout(function(){
				FuncUnit.win.focus();
				var ls = loadSuccess
				loadSuccess = null;
				if (ls) {
					ls();
				}
			}, 0);
			Syn.unbind(FuncUnit.win, "load", onload);
		}
Used to evaluate code in the application page.
@param {String} str the code to evaluate
@return {Object} the result of the evaluated code