function trim(str)
{
	while(str.substring(0,1) == ' ')
		str = str.substring(1, str.length);
	while(str.substring(str.length-1, str.length) == ' ')
		str = str.substring(0,str.length-1);
	return str;
}
function validate(form)
{
	if(trim(form.question.value) == '')
	{
		alert('Please enter a question');
		return false;
	}
	else
		return true;
}