//判断Checkbox是否有选中
function CheckCheckbox(checkname) {
    var flag;
    var checks = document.getElementsByName(checkname);
    for (var i = 0; i < checks.length; i++) {
        if (checks[i].checked == true) {
            flag = true;
            return true;
            break;
        }
    }
    if (!flag) {
        return false;
    }
}


//全选、反选所有复选框
function SetCheckBox(objectName, isChecked) {
    if (document.getElementsByName(objectName) != null) {
        for (i = 0; i < document.getElementsByName(objectName).length; i++) {
            document.getElementsByName(objectName)[i].checked = isChecked;
        }
    }
}

//验证电子邮件是否合法
function CheckEmail(arg_email){
    if (!/(\S)+[@]{1}(\S)+[.]{1}(\w)+/.test(arg_email)) {
        alert("请输入正确的电子邮件地址");
        return false;
    } else { return true; }
}


//去字符串左右两边的空格(中间的空格不能去)
function StrTrim(stringObj) {
    //return (ltrim(rtrim(stringObj)));
    return stringObj.replace(/^\s+|\s+$/g, ""); 
   // return stringObj;
}