//验证码
//判断验证码是否正确
function out_code()
{
    var ul;
    var now = new Date(); 
    var num=now.getYear()+now.getMonth()+now.getDay()+now.getHours()+now.getMinutes()+now.getTime();
    ul = "http://blog.mcuol.com/checkedcode.aspx?v="+document.getElementById("code").value.trim()+"&x="+num;
    return createTextHttpRequest(ul);
}
//换一张验证码
function getimgcode()
{
    var getimagecode = document.getElementById("getcode");
    getimagecode.src = "http://blog.mcuol.com/VerifyCode.aspx?x="+Math.random();
}


//换一张验证码
function getimgcode2()
{
    var getimagecode = document.getElementById("getcode");
    getimagecode.src = "http://blog.mcuol.com/VerifyCode2.aspx?x="+Math.random();
}