// trim(string) not used
function trim(string)
{
	while(string.substring(0,1) == ' ')
	{
		string = string.substring(1, string.length);
	}
	while(string.substring(string.length - 1, string.length ) == ' ')
	{
		string = string.substring(0, string.length - 1);
	}	
	return string;
}