// ---------------------- START DROP DOWN MENUS --------
var timeout         = 500;
var closetimer		= 0;
var ddmenuitem      = 0;

// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';

}
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

// close layer when click-out
document.onclick = mclose; 
// ---------------------- END DROP DOWN MENUS ----------





// SPS Common Functions

// Resize menu to match size of middle column
function resizeDiv(div) {
    if (document.getElementById(div)){
	document.getElementById(div).style.height = document.getElementById("middleCol").offsetHeight + "px";
    }
}

// function to set currently selected menu option
function setMenu(num) { 
	document.getElementById("menu"+num).firstChild.firstChild.src = "images/bmosps_topnav_"+num+"_on.gif";
	document.getElementById("menu"+num).firstChild.firstChild.alt = "";
}

// function to set currently selected side menu option
function setSideMenu(num) { 
    if (document.getElementById("sideMenu_"+num)){
	document.getElementById("sideMenu_"+num).className = "selected";
    }
}

// show/hide news divs
function showDiv(div) {
	// hide all initially
	document.getElementById("pressReleases").style.display = "none";
	document.getElementById("articles").style.display = "none";
	document.getElementById("events").style.display = "none";
	document.getElementById("apex").style.display = "none";
	
	// display selected div
	document.getElementById(div).style.display = "block";
}

// show/hide toggle selected div
function toggleDiv(div) {
	if (document.getElementById(div).style.display == "block") {
		document.getElementById(div).style.display = "none";
	}	
	else {
		document.getElementById(div).style.display = "block";
	}
	
}