Javascript date comparison

[sylph]

Hi,

I have a form for user to apply for booking of place. The date of event (from text field) should be at least 7 days from the date of application. In other words, the user has to apply at least 7 days before the date of the event.

here is the javascript

//if the event date of the text field is not empty
if(c.txtDate.value !="")
{
var myDate = c.txtDate.value;
var myDate_array = myDate.split("-");
var dd = myDate_array[0];
var mth = myDate_array[1];
var yy = myDate_array[2];

var argumentDate = new Date(yy, mth, dd);
//get the date 7 days before the event
argumentDate.setDate(argumentDate.getDate()-7);

var day = argumentDate.getDate();
var month = argumentDate.getMonth();
var year = argumentDate.getYear();
if (day<10) {
day="0"+day;
}
if (month<10) {
month="0"+month;
}
var limitDate = day + "-" + month + "-" + year;
//get today's date to compare.
var today = new Date();
var d = today.getDate();
var m = today.getMonth();
var y = today.getYear();
var todayDate = d + "-" + m + "-" + y;
if (todayDate>limitDate) {
alert ("The application date has to be at least 7 days before the event date");
return false;
}
}

It validates correctly if the date entered is within this year. but if the user were to key in 2006, the validation return true. I have tried changing the date format to year-month-day, but the validation doesn't work as it return false even it is more than 7 days. How can I validate it?
Thanks ! =)

[CrazyMerlin]

convert both dates to timestamps and compare them that way....it is much quicker and perfectly simple.

[sylph]

Thanks for your reply
I can actually convert the value in the text field to timestamp???

[CrazyMerlin]

yes, simply create a date object from the date string, then get dateObject.getTime()

where dateObject is the name of your date object