Jquery发送验证码倒计时

Html

获取验证码" />

Jquery

var wait=60;
function time(o) {
    if (wait == 0) {
        o.removeAttribute("disabled");
        o.value="点击获取验证码";
        wait = 60;
    } else {
        o.setAttribute("disabled", true);
        o.value="重新发送(" + wait + ")";
        wait--;
        setTimeout(function() {
                time(o)
            },            1000)
    }
}
function  getcode( index )

{

    index.setAttribute("disabled", true);

    var phone = $("input[name='phone']").val();

    var reg = /^1[34578]\d{9}$/;

    if( !reg.test(phone) )

    {

        index.removeAttribute("disabled");

        $("input[name='phone']").focus();

    }else

    {

        $.post('您要验证的接口',{您要传递的参数},function( msg ){

            if( msg == 'success' )

            {

                time( index );

            }else

            {

                //这里处理你需要的业务

                index.removeAttribute("disabled");

            }

        },'json');

    }

}

document.getElementById("yzm").onclick=function(){getcode(this);}