function swapVis(showHideId, choiceId)
{
	id     = document.getElementById(showHideId);
	choice = document.getElementById(choiceId);
	
	if(choice.checked == true)
	{
		id.style.display = "none";
	} else {
		id.style.display = "block";
	}
	
	return;
}

function loadGMap() {
	if(GBrowserIsCompatible())
	{
		var map = new GMap2(document.getElementById("map"));
		map.setCenter(new GLatLng(37.4419, -122.1419), 13);
	}
}

function selectItem(element, value)
{
	for(i = 0; i < element.length; i++)
	{
		if(element[i].value == value)
		{
			element.selectedIndex = i;
		}
	}
}

function checkAll(formName)
{
	for (var i=0; i<eval("document." + formName + ".elements.length"); i++)
	{
		var e=eval("document." + formName + ".elements[i]");
		if ((e.name != 'check_all') && (e.type=='checkbox'))
		{
			e.checked=eval("document." + formName + ".check_all.checked");
		}
	}
}