/**
 * 账户登陆验证，有返回值
 * @return true 验证成功 false 验证失败
 */
function validateLoginName() {
	var loginNameElement = document.getElementById("username1");
	if ($.trim(loginNameElement.value) != "") {
		var str = $.trim(loginNameElement.value);
		// 账号匹配
		var pattern1 = /^[a-zA-Z0-9_]{6,20}$/;
		// 移动号码匹配
		var pattern2 = /^1(3[4-9]|5[01289]|8[78])\d{8}$/;

		if (pattern1.exec(str)) {
			if (str.length == 11) {
				if (!pattern2.exec(str)) {
					alert("输入的手机号码必须为移动号码");
					document.getElementById("username1").value = "";
					document.getElementById("username1").focus();
					return false;
				}
			}
			return true;
		} else {
			alert("输入的帐号只允许6到20位字符的英文、数字和下划线组合");
			document.getElementById("username1").value = "";
			document.getElementById("username1").focus();
			return false;
		}
	}
}
/**
 * 账户登陆验证，无返回值
 */
function validateNoRetLoginName() {
	var loginNameElement = document.getElementById("username1");
	if ($.trim(loginNameElement.value) != "") {
		var str = $.trim(loginNameElement.value);
		// 账号匹配
		var pattern1 = /^[a-zA-Z0-9_]{6,20}$/;
		// 移动号码匹配
		var pattern2 = /^1(3[4-9]|5[01289]|8[78])\d{8}$/;
		
		if (pattern1.exec(str)) {
			if (str.length == 11) {
				if (!pattern2.exec(str)) {
					alert("输入的手机号码必须为移动号码");
					document.getElementById("username1").value = "";
					document.getElementById("username1").focus();
				}
			}
		} else {
			alert("输入的帐号只允许6到20位字符的英文、数字和下划线组合");
			document.getElementById("username1").value = "";
			document.getElementById("username1").focus();
		}
	}
}