JQuery - end date less than start date

Question

I\'m trying to fix this problem I\'m having. I have to input tags, one is for Training beginning date and other is for training ending date. What i am trying to do is create

Answer 1

Just expanding off fusions answer. this extension method works using the jQuery validate plugin. It will validate dates and numbers

jQuery.validator.addMethod("greaterThan", 

function(value, element, params) {

if (!/Invalid|NaN/.test(new Date(value))) {
    return new Date(value) > new Date($(params).val());
}

return isNaN(value) && isNaN($(params).val()) 
    || (Number(value) > Number($(params).val())); 
},'Must be greater than {0}.');

To use it:

$("#EndDate").rules('add', { greaterThan: "#StartDate" });

Or

$("form").validate({
rules: {
    EndDate: { greaterThan: "#StartDate" }
}
});