/***********************
* CONSTANTS
*************************/
var currentSection = null;
var showSubNavigation = false;
var SECTION_HOME = "home";
var SECTION_RESEARCH = "research";
var SECTION_PAPERS = "papers";
var SECTION_CV = "cv";
var SECTION_PERSONAL = "personal";

/***********************
* Degrade nice for older browser
*************************/
if (!document.getElementById)
    document.getElementById = function() { return null; }

/***********************
* Debug - Add title to al pages
*************************/
if (document.all)
{
	var detect = navigator.userAgent.toLowerCase();
	var browser,thestring;
	var version = 0;

	if (checkIt('msie')) 
	{
		browser = "IE "
		browser += detect.substr(place + thestring.length,3);
		//document.title = browser + ' - ' + document.title;
		document.title = document.title;
	}
}

function checkIt(string)
{
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;
}

/***********************
* setSection
*************************/
function setSection(sectionID, showSubNav )
{
	showSubNavigation = ( showSubNav == true ) ? true : false;
	currentSection = sectionID;
	highlightSection( sectionID);
}

/***********************
* highlightSection
*************************/
function highlightSection( sectionID)
{
	unhighlightSection( SECTION_RESEARCH );
	unhighlightSection( SECTION_PAPERS );
	unhighlightSection( SECTION_CV );
	unhighlightSection( SECTION_PERSONAL );
	unhighlightSection( SECTION_HOME );
	
	//change the color of the section that is moused over
	var obj = MM_findObj(sectionID , document);
	if( obj != null) obj.className="sectionHot";
	
	//show the sub navs if there are any
	showSubNavMenu(sectionID);
}

/***********************
* unhighlightSection
*************************/
function unhighlightSection( sectionID)
{
	//change this nav section to the off state.
	var obj = MM_findObj(sectionID , document);
	if( obj != null) obj.className="sectionCold";
}

/***********************
* highlightCurrentSection
*************************/
function highlightCurrentSection()
{
	//default back to the current sections nav when nothing is moused over.
	highlightSection( currentSection );
	showSubNavMenu( currentSection );
}

/***********************
* showSubNavMenu
*************************/
function showSubNavMenu( sectionID )
{
	//only show the nav if sub nav active on this page.
	if(showSubNavigation != true) return;

	hideAllSubNavMenues();

	//show the nav
	var obj = MM_findObj("sub_" + sectionID , document);
	if( obj != null) obj.style.display =  "block";

	//show the line under the nav.
	var obj = MM_findObj("subNavHolder", document);
	if( obj != null) obj.style.display =  "block";
}

/***********************
* hideSubNavMenu
*************************/	
function hideSubNavMenu( sectionID )
{
	//only unshow the nav if sub nav active on this page.
	if(showSubNavigation != true) return;

	//show the line under the nav.
	var obj = MM_findObj("subNavHolder", document);
	if( obj != null) obj.style.display =  "none";

	var obj = MM_findObj("sub_" + sectionID , document);
	if( obj != null) obj.style.display =  "none";
}

/***********************
* hideAllSubNavMenues
*************************/
function hideAllSubNavMenues()
{
	hideSubNavMenu( SECTION_RESEARCH );
	hideSubNavMenu( SECTION_PAPERS );
	hideSubNavMenu( SECTION_CV );
	hideSubNavMenu( SECTION_PERSONAL );
	hideSubNavMenu( SECTION_HOME );	
}

/*
function unhighlightALLSection()
{
	MM_findObj(SECTION_HOME , document).className="sectionCold";
	MM_findObj(SECTION_RESEARCH , document).className="sectionCold";
	MM_findObj(SECTION_PAPERS , document).className="sectionCold";
	MM_findObj(SECTION_CV , document).className="sectionCold";
	MM_findObj(SECTION_PERSONAL , document).className="sectionCold";
}
*/

/***********************
* Helper 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_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_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_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 msover(imgName) {
  if (document.images){ 
    document[imgName].src = eval(imgName + 'r.src');
    }
}
function msout(imgName) {
  if (document.images){
    document[imgName].src = eval(imgName + '.src');
    }
}

function openSmall(ProdPage) {
  ProdInfo=window.open(ProdPage,'productinfo','width=360,height=445,resizable=yes,scrollbars=no');
  ProdInfo.focus();
  // return false;
}

function openShippingWindow(Id) { 
  if (Id.value == "37" || Id.value == "33") {
     window.open("/ShippingInfo.tem","shipping","toolbar=no,no,location=no,directories=no,status=no,menubar=no,resizable=no,scrollbars=no,width=400, height=208");
  }
}

function centerPopUp(mypage, myname, w, h, scroll) 
{
var winl = (screen.width - w) / 2;
var wint = (screen.height - h) / 2;
winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable'

win = window.open(mypage, myname, winprops)

if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}

function centerPopUpWithMenu(mypage, myname, w, h, scroll) 
{
var winl = (screen.width - w) / 2;
var wint = (screen.height - h) / 2;
winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable=yes'+',toolbar=yes,menubar=yes,location=yes,directories=no,status=yes'

win = window.open(mypage, myname, winprops)

if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}