// JavaScript Document

/**
* Show specified div layer
*
* @param  elem_id  the string value of the div to make visible.
*/
function elemOn(elem_id)
{
		if(document.getElementById(elem_id))
			document.getElementById(elem_id).style.display = "block";
}

/**
* Hide specified div layer
*
* @param  elem_id  the string value of the div to hide.
*/
function elemOff(elem_id)
{
		if(document.getElementById(elem_id))
			document.getElementById(elem_id).style.display = "none";
}

/**
* Hide all div layers
*/
function hideAll()
{
		for(var i = 1; i <= numCallouts; i++)
			elemOff( 'div'+i );
}

/**
* Show newly selected div, hide any previously visible divs
*
* @param  elem_id  the string value of the div to show.
*/
function showOne(elem_id)
{
		hideAll( );
		elemOn( elem_id );
}
	
window.onload = function()
{
		var pageTitle = document.title.slice(0,document.title.indexOf("#"));
		document.title = pageTitle;
}