function validateDateStr(validString)
{	
	var retValue = "";	
	var strLength = validString.length;
	
	if (parseInt(strLength) != 10) 
	{
		retValue = "Not a valid Date format. Please re-enter.";
	}			
	else if ((validString.substring(2, 3) != "/") || (validString.substring(5, 6) != "/"))
	{
		retValue = "Please use valid date format: MM/DD/YYYY.";
	}
	else if (parseInt(validString.substring(0, 2)) > 12)
	{
		retValue = "Not a valid Month. Please re-enter.";
	}						
	else if (((parseInt(validString.substring(0,2)) == 1) || 
		(parseInt(validString.substring(0,2)) == 3) ||
		(parseInt(validString.substring(0,2)) == 5) || 
		(parseInt(validString.substring(0,2)) == 7) || 
		(parseInt(validString.substring(0,2)) == 8) || 
		(parseInt(validString.substring(0,2)) == 10) || 
		(parseInt(validString.substring(0,2)) == 12)) && 
		(parseInt(validString.substring(3,5)) > 31))
	{
		retValue = "Not a valid Day. Please re-enter.";
	}				
	else if (((parseInt(validString.substring(0,2)) == 4) || 
		(parseInt(validString.substring(0,2)) == 6) || 
		(parseInt(validString.substring(0,2)) == 9) || 
		(parseInt(validString.substring(0,2)) == 11)) && 
		(parseInt(validString.substring(3,5)) > 30))
	{
		retValue = "Not a valid Day. Please re-enter.";
	}
	else if ((parseInt(validString.substring(0,2)) == 2) && (parseInt(validString.substring(3,5)) > 28))
	{
		retValue = "Not a valid Day. Please re-enter.";
	}
	else if ((parseInt(validString.substring(6,7)) != 1) && (parseInt(validString.substring(6,7)) != 2))
	{
		retValue = "Not a valid Year. Please re-enter.";
	}
	else
	{
		retValue = "";		
	}
	return retValue;
}