// JavaScript Document

// Begin Macromedia Dreamweaver Functions

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

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];}
}

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_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

// End Macromedia Dreamweaver Functions
//////////////////////////////////////////////

//////////////////////////////////////////////
// Begin Site/Page-Specific Functions

// Top Nav Functions
var tmr = null;
function tmoff() { // Required to timeout pop-outs on NS 4.x browsers
	if ((navigator.appName=="Netscape")&&(parseInt(navigator.appVersion)<5)) {
		tmr = window.setTimeout('menuoff()',3000);
	}
	else {
		menuoff();
	}
}

function menuoff() {
	MM_swapImgRestore();
	
	MM_showHideLayers('about','','hide');
	MM_showHideLayers('research','','hide');
	MM_showHideLayers('education','','hide');
}

function menuon(secname) {
	window.clearTimeout(tmr);
	menuoff();
	strimagename = document.getElementById('hnav_'+secname).src;
	MM_swapImage('hnav_'+secname,'','/group/cpn/images/hnav_'+secname+'_on.gif',1);
	if((secname!='contact')&&(secname!='links')) {
		MM_showHideLayers(secname,'','show');
	}
}

// set array for DHTML menu left alignment
var arrmenuleft= new Array()

function build_menus() {
	o=MM_findObj('hnav_about');xw=o.offsetLeft;p=o.offsetParent;
    while(p!=null){xw+=p.offsetLeft;p=p.offsetParent;}
	arrmenuleft["about"] = xw;
	arrmenuleft["research"] = xw+80;
	arrmenuleft["education"] = xw+151;
	document.write('<style type="text/css">');
	document.write('#about {position:absolute;left:'+arrmenuleft["about"]+'px;top:112px;z-index:4;}');
	document.write('#research {position:absolute;left:'+arrmenuleft["research"]+'px;top:112px;z-index:4;}');
	document.write('#education {position:absolute;left:'+arrmenuleft["education"]+'px;top:112px;z-index:4;}');
	document.write('</style>');
}