function capitalise(str)
{
	//check that str is a string
	//if(typeof str != String)
	//{
	//	return str;
	//}
	//extract the first letter of str
	var letter = str.substr(0,1);
	//return letter capitalised concatonated with
	//str minus it's first letter
	
	return letter.toUpperCase() + str.substr(1).toLowerCase();
	
}