// isDate (DATE d_date)
//
// isDate returns true if valid date or false for an invalid date.
// 

function isDate (d_Date)
{ 
	var newDateObject;
	
	newDateObject = new Date(d_Date);
	
	if (isNaN(newDateObject))
	{
		return false;
	}
	else
	{
		return true;
	}
}