function getSuburb()
{
	suburbs = document.n.u;
	suburb = document.n.tb;
	for(i = 0; i < suburbs.options.length; i++){
		suburbs.options[i].selected = false;
		if (suburb.value.length && suburbs.options[i].value.toUpperCase().indexOf(suburb.value.toUpperCase()) == 0){
			suburbs.options[i].selected = true;
		}
	}
	if (suburbs.selectedIndex < 0){
		suburbs.options[0].selected = true;
	}
}

function resetSuburb()
{
	suburb = document.n.tb;
	suburb.value = "";
}

function resetSuburbs()
{
	suburbs = document.n.u;
	suburb = document.n.tb;
	if (suburb.value.length == 0){
		for(i = 0; i < suburbs.options.length; i++){
			suburbs.options[i].selected = false;
		}
		suburbs.options[0].selected = true;
	}	
}