validate input date

[AliHabib]

<script language="javascript">

			function validateDate(fld) {
				var RegExPattern = ((^(10|12|0?[13578])([/])(3[01]|[12][0-9]|0?[1-9])([/])((1[8-9]\d{2})|([2-9]\d{3}))$)|(^(11|0?[469])([/])(30|[12][0-9]|0?[1-9])([/])((1[8-9]\d{2})|([2-9]\d{3}))$)|(^(0?2)([/])(2[0-8]|1[0-9]|0?[1-9])([/])((1[8-9]\d{2})|([2-9]\d{3}))$)|(^(0?2)([/])(29)([/])([2468][048]00)$)|(^(0?2)([/])(29)([/])([3579][26]00)$)|(^(0?2)([/])(29)([/])([1][89][0][48])$)|(^(0?2)([/])(29)([/])([2-9][0-9][0][48])$)|(^(0?2)([/])(29)([/])([1][89][2468][048])$)|(^(0?2)([/])(29)([/])([2-9][0-9][2468][048])$)|(^(0?2)([/])(29)([/])([1][89][13579][26])$)|(^(0?2)([/])(29)([/])([2-9][0-9][13579][26])$))
				var errorMessage = 'Please enter valid date as month, day, and four digit year.\nYou may use a slash, hyphen or period to separate the values.\nThe date must be a real date. 30/2/2000 would not be accepted.\nFormay dd/mm/yyyy.';
				if ((fld.value.match(RegExPattern)) && (fld.value!='')) {
					alert('Date is OK'); 
				} else {
					alert(errorMessage);
					fld.focus();
				} 
			}

</script>

and in the body

<tr>
					<td>
						From Date: <Input type="text" style="COLOR: white; BACKGROUND-COLOR: #728fd6; face: verdana" size="10"
							name="TxtFrom" ID="Text4" onblur="validateDate(this);" />
					</td>
					<td>
						To Date: <Input type="text" style="COLOR: white; BACKGROUND-COLOR: #728fd6; face: verdana" size="10"
							name="TxtTo" ID="Text5" onblur="validateDate(this);" />
					</td>
				</tr>
				<tr>

[CroCrew]

The quick red fox jumps over the lazy brown dog.

[Frinavale]

It's wonderful that you have implemented a solution to validate dates...
Is there a problem with the above posted code?
Do you have a question to ask?

-Frinny

[jhardman]

Also, this doesn't seem to be related directly to ASP. This is a strict javascript solution.

Jared