function validate(options) {
    var current = $("#" + options.target);
    if (current.attr("validate") == "false") {
        current.attr("validate", "validing");
        current.parent().find(".validate,.field-validation-error").remove();
        switch (options.target) {
            //单位名          
            case "txtcompany":
                if ($.trim(current.val()) == "") {
                    current.after("<span class='validate tip'>请输入您的单位名称</span>");
                    if (options.focus) current.focus();
                } 
                else {
                    current.attr("validate", "true").after("<span class='validate iconbg success'></span>");
                    return;                         
                }
                break;
            //姓名            
            case "txtusername":
                if ($.trim(current.val()) == "") {
                    current.after("<span class='validate tip'>请输入您的姓名</span>");
                    if (options.focus) current.focus();
                } 
                else {
                    current.attr("validate", "true").after("<span class='validate iconbg success'></span>");
                    return;
                }
                break;
            //电话            
            case "txtuserphone":
                if ($.trim(current.val()) == "") {
                    current.after("<span class='validate tip'>请输入您的电话</span>");
                    if (options.focus) current.focus();
                } 
                else if (!/^\d{11}$/.test($.trim(current.val()))) {
                    if (options.focus) current.focus();
                    current.after("<span class='validate iconbg error'>该手机号码格式不正确</span>");
                }
                else if (!/^1[3458]\d{9}$/.test($.trim(current.val()))) {
                        if (options.focus) current.focus();
                        current.after("<span class='validate iconbg error'>该手机号码不存在</span>");
                } else {
                    current.attr("validate", "true").after("<span class='validate iconbg success'></span>");
                    return;
                } 
                break;
            
            //地址       
            case "txtaddress":
                if (current != null) {
                    if ($.trim(current.val()) == "") {
                        if (options.focus) current.focus();
                        current.after("<span class='validate tip'>请输入您的地址</span>");
                    }
                    else {
                        current.attr("validate", "true").after("<span class='validate iconbg success'></span>");
                        return; 
                    }
                }
                break;
            //电子邮箱            
            case "txtemail":
                if ($.trim(current.val()) == "") {
                    current.after("<span class='validate tip'>请输入您常用的邮箱</span>");
                    if (options.focus) current.focus();
                }
                else if (!/^(([\-\w]+)\.?)+@(([\-\w]+)\.?)+\.[a-za-z]{2,4}$/.test($.trim(current.val()))) {
                    current.after("<span class='validate iconbg error'>请输入正确格式的邮箱地址</span>");
                    if (options.focus) current.focus();
                }
                else { 
                    current.attr("validate", "true").after("<span class='validate iconbg success'></span>");
                    return; 
                }
                break;
             //留言主题          
            case "txtsubject":
                if ($.trim(current.val()) == "") {
                    current.after("<span class='validate tip'>请输入要留言的主题</span>");
                    if (options.focus) current.focus();
                } 
                else { 
                    current.attr("validate", "true").after("<span class='validate iconbg success'></span>");
                    return; 
                }
                break; 
            //版本号
            case "txtversion":
                if ($.trim(current.val()) == "") {
                    current.after("<span class='validate tip'>请输入版本号</span>");
                    if (options.focus) current.focus();
                } 
                else { 
                    current.attr("validate", "true").after("<span class='validate iconbg success'></span>");
                    return; 
                }
                break; 
            //预设值/基本号
            case "txtbasicno":
                if ($.trim(current.val()) == "") {
                    current.after("<span class='validate tip'>请输入预设值/基本号</span>");
                    if (options.focus) current.focus();
                } 
                else { 
                    current.attr("validate", "true").after("<span class='validate iconbg success'></span>");
                    return; 
                }
                break; 
            //意见
            case "txtremark":
                if ($.trim(current.val()) == "") {
                    current.after("<span class='validate tip'>请输入您的意见</span>");
                    if (options.focus) current.focus();
                } 
                else { 
                    current.attr("validate", "true").after("<span class='validate iconbg success'></span>");
                    return; 
                }
                break; 
            //验证码
            case "txtsigncode":
                if ($.trim(current.val()) == "") {
                    current.after("<span class='validate tip'>请输入验证码</span>");
                    if (options.focus) current.focus();
                } 
                else{ 
                    current.attr("validate", "true").after("<span class='validate iconbg success'></span>");
                    return;                        
                } 
                break;
        }
        current.attr("validate", "false");
    }
}

$(document).ready(function () { 
    $("input[validate]").keydown(function (e) {
        if (e.keycode == 13) {
            $("#btnsubmit").click();
        }
    }).focus(function () {
        validate({ target: this.id });
    }).blur(function () {
        validate({ target: this.id });
    })     
});


function f_submit(){
    $("input[validate]").each(function () {
        validate({ target: $(this).attr("id") });
    });
    if ($("input:[validate='false']").length < 1) {
        return true;  
    }else{
        return false;
    }
}




function change1(){
    var randomnum = math.random(); 
    var getimagecode = document.getelementbyid("codes");
    getimagecode.src = "admin/code.aspx?" + randomnum;
}

function f_clear(){
    $("input[type='text']").each(function(){
        this.value = "";
    })
    $("#txtcontent").val("");
}