function sidebar(which){
	
	if(which=='search'){
		
		document.getElementById('tab1').className='selected'
		document.getElementById('tab2').className='';
		document.getElementById('sidebar_search').className='';
		document.getElementById('sidebar_contact').className='off';
		
	} else {
	
		document.getElementById('tab1').className=''
		document.getElementById('tab2').className='selected';
		document.getElementById('sidebar_search').className='off';
		document.getElementById('sidebar_contact').className='';	
	
	}
	
}

function reveal_menu(which){
	//alert('over');
	document.getElementById(which).className='dropdown';
}
function hide_menu(which){
	//alert('out');
	document.getElementById(which).className='off';
}

function show_unsubscribe()
{
	if(document.getElementById('unsubscribe_form').className=='off')
		{
			document.getElementById('unsubscribe_form').className='on';
		}
	else
		{
			document.getElementById('unsubscribe_form').className='off';
		}
}

function reg_check(what,value,method)
{
	if(method=='focus')
		{
			if(what.value == value)
				{
					what.value = '';
				}
		}
	else
		{
			if(what.value == '')
				{
					what.value = value;
				}			
		}
}

	/*search*/

	var sfsIndex       = new Object;
	sfsIndex.populated = false;
	/*
	Typing a name into the suburb entry field will scroll the suburb select
	field to a matching suburb name (if any).
	*/
	function sfsComplete () 
	{
		if (!document.getElementById) return;
		var text   = document.getElementById('tb');
		var select = document.getElementById('u');
		if (!sfsIndex.populated) sfsBuildIndex();
		var suburb = text.value.match(/,*([^,]+)$/);
		if (suburb) {
		var name = suburb[1].toUpperCase().replace(/^\s*/, '').replace(/\s*$/, '');
		for (var i = sfsIndex[name.charAt(0)]; i < select.options.length; i++) {
		if (select.options[i].text.toUpperCase().indexOf(name) == 0) {
		select.selectedIndex = i;
		break;
		}
		else {
		select.selectedIndex = -1;
		}
		}
		}
	}
	/*
	On click event for the suburb select box. When clicked it populates
	the suburb entry field then deselects the clicked suburb. Focus is
	returned to the suburb entry field.
	*/
	function sfsInsert () 
	{
		if (!document.getElementById) return false;
		var text    = document.getElementById('tb');
		var select  = document.getElementById('u');
		// An IE bug means we need another event before select.selectedIndex
		// will update from -1. Since we need to swap the focus anyway we'll
		// do it before we look at what was clicked in the select box.
		text.focus();
		var suburb = select.options[select.selectedIndex];
		
		// short circuit on 'show all suburbs'
		if (select.selectedIndex == 0) {
		text.value = '';
		return true;
		}
	
		// see if the selected suburb is in the list already
		var textSuburbs = text.value.split(/\s*,\s*/);
		if (!textSuburbs) return false;
		var pattern = new RegExp('\s*' + suburb.text + '\s*$');
		for (var i = 0; i < textSuburbs.length; i++) {
		// if it's in the list don't do anything
		if (pattern.exec(textSuburbs[i])) return false;
		}
		// its not in the list so lets add it replacing any incomplete words
		var newvalue = text.value.replace(
		/(^|,)([^,]*)$/,
		"$1 " + suburb.text + ', '
		);
		text.value = newvalue;
		return false;
	}
	/*
	Builds an index based on the first occurrence of suburb starting with a
	letter. This speeds up the 'for' search of the select because we can
	then skip straight to suburbs starting with that letter.
	*/
	function sfsBuildIndex () 
	{
		if (!document.getElementById) return;
		var select = document.getElementById('u');
		for (var i = select.options.length; i--;) {
		sfsIndex[select.options[i].text.toUpperCase().charAt(0)] = i;
		}
		sfsIndex.populated = true;
	}