Fix some small jslint issues
Fix some small jslint issues

wangyi8412/yslow,simudream/yslow,arjunrn/yslow,codeviking/yslow,arjunrn/yslow,simudream/yslow,aaron-goshine/yslow,wangyi8412/yslow,codeviking/yslow,aaron-goshine/yslow,marcelduran/yslow