function isalpha(c) 
{
    return (((c >= 'a') && (c <= 'z')) || ((c >= 'A') && (c <= 'Z')));
}

function isdigit(c)
{
	return ((c >= '0') && (c <= '9'));
}

function isalnum(c) 
{
    return (isalpha(c) || isdigit(c));
}


function chkDate(theDate)
{
	if ( 0 == theDate.length )
	{
		return true;
	}
	
	arrayOfStrings = theDate.split('/');

	if ( 3 != arrayOfStrings.length )
	{
		return false;	
	}
	
	for ( i = 0; i <= 2; i++ )
	{
		if ( ( !isdigit(arrayOfStrings[i]) ) && ( 2 == arrayOfStrings[i].length ) )
		{	
			return false;
		}
	}
	
	if ( 4 != arrayOfStrings[2].length )
	{
		return false;	
	}
	
	return true;

}

function swapDate(started)
{
	var dateArray = started.split('/');		
	return dateArray[1] + '/' + dateArray[0] + '/' + dateArray[2];
}

function isString(theString)
{
	var i = 0;
	var foundChar = false;
	
	for ( i = 0; i < theString.length; i++ )
	{
		if ( isalpha(theString.charAt(i)) )
		{
			foundChar = true;
		}
	}
	
	return foundChar;
}