jQuery validation help

Question

//in here i want to insert only numbers.how can i do that?

function validate_proprty_price()
    {
        if($("#proprty_price").val() == '')
        {
            proprty_price.addClass("error");
            proprty_price_span.text("Please Enter Price");
            proprty_price_span.addClass("message_error2");
            return false;
        }
        else{
            proprty_price.removeClass("error");
            proprty_price_span.text("");
            proprty_price_span.removeClass("message_error2");
            return true;
        }
    }

Answer 1

Trying to convert any string that is not a number with Number will return NaN, so:

var price = $("#proprty_price").val();
if (isNaN(Number(price)) {
    // not a number, error message
}

Answer 2

Append jQuery Validation script to your code like:

<script 
    type="text/javascript"
    src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.8/jquery.validate.min.js">
</script>

and just add number and required as a class to your input as

<input id="price" class="required number" />