Form validation password match in jquery

In this below script,Form validation password match in jquery

HTML
<form id="details" action=''>
  <input type='text' id='password'/>
  <input type='text' id='repeatpass'/>
  <span id="matchpass"></span>
</form>

Script

function onLoad() {

    $("#password").keyup(passCheck);

    $("#repeatpass").keyup(passCheck);

}

function passCheck() {

    var password = $("#password").val();

    var repeatpass = $("#repeatpass").val();

    if (password == repeatpass) {

        $("#matchpass").text("Passwords match");

        $("#matchpass").addClass("valid");

        $("#matchpass").removeClass("error");

        $("#details").submit();

    } else {

        $("#matchpass").text("Passwords donot match");

        $("#matchpass").addClass("error");

        $("#matchpass").removeClass("valid");

    }

}

$(document).ready(onLoad);