var primaryNav;
var secondaryNav;
var activeTimeout = null;
var timeoutLength = 1000;
function plato(arg) {
  var rslt;
  if (document.getElementById) rslt = document.createElement('img');
  else rslt = new Image();
  rslt.src = arg;
  return rslt;
}
 
function changeImages() { 
  if (loadedjs && preloadFlag) { 
    for (var i=0; i<changeImages.arguments.length; i+=2) {
    var name = changeImages.arguments[i];
    if (typeof document[name] != "undefined") {
        document[name].src = changeImages.arguments[i+1];
    }
    }
  }
} 
function preloadImages() { 
  var imgFiles = preloadImages.arguments; 
  for (var i=0; i<imgFiles.length; i+=2) { 
    window[imgFiles[i]] = plato(imgFiles[i+1]);
    window[imgFiles[i]].src = imgFiles[i+1]; 
  } 
  preloadFlag = true; 
}
preloadImages('solutions','../resources/images/interface/nav-home_over.gif',
			  'solutions','../resources/images/interface/nav-solutions_over.gif',
              'blog','../resources/images/interface/nav-blog_over.gif',
              'videos','../resources/images/interface/nav-videos_over.gif',
              'events','../resources/images/interface/nav-events_over.gif',
              'contact','../resources/images/interface/nav-contact_over.gif',
              'spacer_img','../resources/images/interface/spacer.gif'
              ); 
function getElement(id) {
    var object = null;
    if (document.getElementById) 
    object = document.getElementById(id);
    else {
    if (document.layers) 
        object = document.layers[id];
    else if (document.all) 
        object = eval("document.all." + id);
    }
    return object;
}
function activateNav() {
    changeImages(primaryNav + '_img', '../resources/images/interface/' + primaryNav + '_on.gif');
    var anchor = getElement(primaryNav + '_' + secondaryNav);
    if (anchor != null) 
    anchor.className = 'active';
    activateSection(primaryNav);
 /* The following line fixes an issue where Gecko browsers display Arial smaller than IE/Opera when using 'em' units */
// if (navigator.appName == "Netscape") { //document.getElementsByTagName("body").item(0).style.fontSize="1.05em"; };
}
function activateSection(sectionToActivate)
{
    stopTimer();
    doActivateSection(sectionToActivate);
}
function stopTimer() {
    if (activeTimeout != null) {
    clearTimeout(activeTimeout);
    }
}
function startTimer() {
    resetTimer();
}
function resetTimer() {
    stopTimer();
    activeTimeout = setTimeout("resetNav()", timeoutLength);
}
    
function doActivateSection(sectionToActivate) {
    for (i = 0; i < sectionList.length; i++) {
    var section = sectionList[i];
    if (section == sectionToActivate) {
        toggleVisibility(section, "visible");
        if (section != primaryNav) {
        changeImages(section + '_img', '../resources/images/interface/' + section + '_over.gif');
        }
    } else {
        toggleVisibility(section, "hidden");
        if (section != primaryNav) {
        changeImages(section + '_img', '../resources/images/interface/' + section + '.gif');
        }
    }
    }
}
function resetNav() {
    doActivateSection(primaryNav);
}
function toggleVisibility(id, newVisibility) 
{
    var div = getElement(id);
    if (div != null) {
    div.style.visibility = newVisibility;
    }
}
libLoaded = true;
function getNavId () {
  var metaElements = document.all ?
    document.all.tags('META') :
    document.getElementsByTagName ?
    document.getElementsByTagName ('META') : new Array();
  for (var m = 0; m < metaElements.length; m++)
      if (metaElements[m].name == 'PrimaryNav') {
      primaryNav = metaElements[m].content;
      } else if (metaElements[m].name == 'SecondaryNav') {
      secondaryNav = metaElements[m].content;
      }
  return primaryNav + '_' + secondaryNav;
}
function getCopyrightText() {
    var text = '&copy;2009 EMC, Inc. All Rights Reserved.';
    return text;
}
function getPRContactText() {
    var text = '<B>Contact:</B><BR />contact name<BR />EMC Inc.<BR />000-000-0000<BR /><A HREF="mailto:">email</A>';
    return text;
}
// --- Product Finder functions -------------------------
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
// --- Window functions -------------------------
function openWindow(url, name) {
  popupWin = window.open(url, name, 'scrollbars=yes,resizable=yes,status=no,personal=no,menu=no,location=no,toolbar=no,left=20,top=20,width=770,height=500')
}
//useage: put each parameter in single quotes example: openSizedWindow('http://www.empirix.com','myName','400','500');
function openSizedWindow(url, name, myHeight, myWidth) 
{
 popupWin = window.open(url, name, 'scrollbars=yes,resizable=yes,status=yes,personal=no,menu=no,location=no,toolbar=no,left=20,top=20,width=' +myWidth+',height='+myHeight+'');
}
function openSizedWindowPlain(url, name, myHeight, myWidth) 
{
 popupWin = window.open(url, name, 'scrollbars=no,resizable=no,status=no,personal=no,menu=no,location=no,toolbar=no,left=20,top=20,width=' +myWidth+',height='+myHeight+'');
}
function openSizedWindowUI(url, name, myHeight, myWidth) 
{
 popupWin = window.open(url, name, 'scrollbars=yes,resizable=yes,status=yes,personal=no,menubar=yes,location=yes,toolbar=yes,left=20,top=20,width=' +myWidth+',height='+myHeight+'');
}
// ----------------------------------------------
var loadedjs = true;