//屏蔽所有的js错误 测试需要去掉 有的是google造成的 测试先屏蔽
//function killerrors() { 
//return true; 
//}
//window.onerror = killerrors;
//function trim(val)
//{
//var exp = /(^\s+)|(\s+$)/g;
//var resVal = val.replace(exp,"");
//return resVal;
//}