Date validation using jQuery

Date can't be less than current date validation

var vpEffDate = $("input[title=’Price Date']").val();
var effDateArr = vpEffDate.split("/");
var expireDate = new Date(effDateArr[2], effDateArr[0] - 1, effDateArr[1]);
var todayDate = new Date();
if (todayDate > expireDate)
{
    alert("Price Date can't be less than today's date");
    return false;

};