<!--

var siteNavigation = new Array();
var subNavigation = new Array();
var sectionMenu = new Array();
var subMenu = new Array();

// constant width and y position
var menuY = 55
var menuWidth=140;

var my_ns4=(document.layers)?true:false
var my_ns6=(navigator.userAgent.indexOf("Gecko")!=-1)?true:false

var centeredOffset = 0;
if (my_ns4||my_ns6) {
  if (window.innerWidth > 738) centeredOffset = Math.floor((window.innerWidth - (750 + 12)) / 2);
  }
else {
  if (document.body.clientWidth > 750) centeredOffset = Math.floor((document.body.clientWidth - 750) / 2);
}


// menu item descriptors
sectionMenu[0] = aboutUsDescriptor;

sectionMenu[1]=[
["news","default.asp2.htm"],
["events","events.asp.htm"],
["press","press.asp.htm"]
];

sectionMenu[2]=[
["current surveys...","show-menu=current_surveys"],
["archived surveys","default.asp15.htm"]
];

sectionMenu[3]=[
["current publications...", "default.asp4.htm"],
["archived publications", "default.asp16.htm"]
];

sectionMenu[4]= linksDescriptor;

subMenu[1]= surveysDescriptor;


// style descriptors
var style1=["999999","ffffff","ffffff","6600CC","999999",
        10,"normal","normal","Verdana, Arial, Helvetica, SanSerif",2,,,					// 3D Border & Separator bar
        "","","","","","","","CCCCCC"];
        
var style2=["999999","ffffff","ffffff","006699","999999",
        10,"normal","normal","Verdana, Arial, Helvetica, SanSerif",2,,,					// 3D Border & Separator bar
        "","","","","","","","CCCCCC"];
        
var style3=["999999","ffffff","ffffff","999933","999999",
        10,"normal","normal","Verdana, Arial, Helvetica, SanSerif",2,,,					// 3D Border & Separator bar
        "","","","","","","","CCCCCC"];
        
var style4=["999999","ffffff","ffffff","CC0033","999999",
        10,"normal","normal","Verdana, Arial, Helvetica, SanSerif",2,,,					// 3D Border & Separator bar
        "","","","","","","","CCCCCC"];

var style5=["999999","ffffff","ffffff","FF00CC","999999",
        10,"normal","normal","Verdana, Arial, Helvetica, SanSerif",2,,,
        "","","","","","","","CCCCCC"];

// add description details
siteNavigation[0] = new DropdownMenu('aboutus',285,menuY,menuWidth,sectionMenu[0],style1);
siteNavigation[1] = new DropdownMenu('newsroom',376,menuY,menuWidth,sectionMenu[1],style2);
siteNavigation[2] = new DropdownMenu('surveys',467,menuY,menuWidth,sectionMenu[2],style3); // width empty so it is variable
siteNavigation[3] = new DropdownMenu('publications',558,menuY,menuWidth,sectionMenu[3],style4);
siteNavigation[4] = new DropdownMenu('links',650,menuY,menuWidth,sectionMenu[4],style5);

var undefined;
subNavigation[0] = new SubMenu('current_surveys',undefined,undefined,220,subMenu[1],style3);

function DropdownMenu(name,x, y,width,menuDescriptor,styleDescriptor){
  this.name = name;
  this.xReal = x;
  this.x = centeredOffset + x;
  this.y = y;
  this.width = width;
  this.desrc = menuDescriptor;
  this.style = styleDescriptor
}

function SubMenu(name,x, y,width,menuDescriptor,styleDescriptor){
  this.name = name;
  this.x = x;
  this.y = y;
  this.width = width;
  this.desrc = menuDescriptor;
  this.style = styleDescriptor
}

function attachResizeHandler(){

if (! (my_ns4 || my_ns6)) {
 window.attachEvent("onresize", repositionMenus);
}

}

function repositionMenus(){
  var m = null;
  var centeredOffset = 0;
  if (document.body.clientWidth > 750) centeredOffset = Math.floor((document.body.clientWidth - 750) / 2);


  for (var i = 0; i < siteNavigation.length; i++){
    m = document.getElementById('menu' + (i + 1));
    if (m) {
      m.style.left = centeredOffset + siteNavigation[i].xReal;
    }
  }
}

//-->