// Image functions
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		var nav_links = newImage("/images/nav_links-over.gif");
		var nav_marketing = newImage("/images/nav_marketing-over.gif");
		var nav_pro_development = newImage("/images/nav_pro_development-over.gif");
		var nav_research = newImage("/images/nav_research-over.gif");
		var nav_planning = newImage("/images/nav_stra_planning-over.gif");
		var nav_who = newImage("/images/nav_who-over.gif");
		preloadFlag = true;
	}
}


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

// Menu
var menu=new Array()
menu[0] = 'dropdown_who';
menu[1] = 'dropdown_prodev';
menu[2] = 'dropdown_research';
var menuNum = menu.length;

function divDisplay(divid) {
	hideAllMenus();
	var theDiv = document.getElementById(divid)
	theDiv.style.visibility = "visible";
}

function hideAllMenus() {
	var i = 0;
	for(i; i < menuNum; i++){
		var theDivhide = document.getElementById(menu[i])
		theDivhide.style.visibility = "hidden";
	}
}

function divNoDisplay() {
	timeOn = setTimeout("hideAllMenus()", 500);	
}

function clearT() {
	if (typeof timeOn!="undefined") {
		clearTimeout(timeOn)
	}
}

//dropdown rollover

function rollover_nav(navid){
	var theDivhide = document.getElementById(navid)
	theDivhide.backgroundColor="#013C66";
	theDivhide.className = "dropdown_nav_over";
}

function rollout_nav(navid){
	var theDivhide = document.getElementById(navid)
	theDivhide.className = "dropdown_nav_out";
}