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Validating dates in javascript

Hi Experts,

I wanted to compare dates in javascript. I have a dates in format

// 18-Sep-2013
// 15-Oct-2013

if(document.getElementById("car_eventDate_from").value >= document.getElementById("car_eventDate_return").value)   
{

}

WHERE

Value for document.getElementById("car_eventDate_from").value = 18-Sep-2013
Value for document.getElementById("car_eventDate_return").value = 15-Oct-2013

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Above date validation works fine if we take dates in july, aug

but if we take dates in sep and oct it fails.

Please help making above condition works with calculating dates.

Thanks & Regards

ASKER CERTIFIED SOLUTION

Amar Bardoliwala

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See answer

Rob

Taking what has been posted... see here for a working example

http://jsfiddle.net/rjurd/RQQAa/

html:

<div id='car_eventDate_from'>18-Sep-2013</div>
<div id='car_eventDate_return'>15-Oct-2013</div>
<div id='result'></div>

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javascript:

var date_from = customParse(document.getElementById('car_eventDate_from').innerHTML);
var date_return = customParse(document.getElementById('car_eventDate_return').innerHTML);

if(date_from >= date_return)   
{
document.getElementById('result').innerHTML = 'from is greater';
}
else {
document.getElementById('result').innerHTML = 'return is greater';
}
function customParse(str) {
    var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
        'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
        n = months.length,
        re = /(\d{2})-([a-z]{3})-(\d{4})/i,
        matches;

    while (n--) {
        months[months[n]] = n;
    } // map month names to their index :)

    matches = str.match(re); // extract date parts from string

    return new Date(matches[3], months[matches[2]], matches[1]);
}

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