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

function changeImages() {
  if (document.images) {
    var img;
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      img = null;
      if (document.layers) {
        img = findElement(changeImages.arguments[i],0);
      }
      else {
        img = document.images[changeImages.arguments[i]];
      }
      if (img) {
        img.src = changeImages.arguments[i+1];
      }
    }
  }
}

var preloadFlag = false;
function preloadImages() {
  if (document.images) {
    id01whoweare_over = newImage("images/01whoweare-over.gif");
    id02getinvolved_01whoweare_over = newImage("images/02getinvolved-01whoweare_ov.gif");
    id03events_01whoweare_over = newImage("images/03events_over.gif");
    id04blogs_01whoweare_over = newImage("images/04blogs_over.gif");
    id05media_01whoweare_over = newImage("images/05media_over.gif");
    id06contactus_01whoweare_over = newImage("images/06contactus_over.gif");
    id07venue_01whoweare_over = newImage("images/07venue_over.gif");
    preloadFlag = true;
  }
}

// ------------------------------------

var last = "main"
function selectContentold(what) {
  if (browser=="Internet Explorer") {
    newLayer = eval("document.all." + what + ".style");
    lastLayer = eval("document.all." + last + ".style");
  } 
  else if (browser=="Netscape Navigator") { //IS NETSCAPE 4 or below
    newLayer = document.layers[what];
    lastLayer = document.layers[last];
  } else {
    newLayer = document.getElementById(what).style;
    lastLayer = document.getElementById(last).style;
  }
  alert("3");
  lastLayer.display = "none";
  alert(newLayer.display);
  newLayer.display = "";
    alert(newLayer.display);

  last = what;
//  document.getElementById('contentFrame').style.height = myHeight
//  document.getElementById('footer').style.top = myHeight + 230;
}

function selectContent(what) {
  if (browser=="Internet Explorer") {
    newLayer = eval("document.all." + what + ".style");
    lastLayer = eval("document.all." + what);
  } else if (browser == "Netscape Navigator") { //IS NETSCAPE 4 or below
    newLayer = document.layers[what];
    lastLayer = document.layers[what];
  } else {
  alert(what);
    newLayer = document.getElementById(what).style;
    alert(newLayer);
    lastLayer = document.getElementById(what).style;
  }
  alert(newLayer.display);
  newLayer.display = "inline";
    alert(newLayer.display);
}

function getQueryVariable(variable) {
  var query = window.location.search.substring(1);
  var vars = query.split("&");
  for (var i=0;i<vars.length;i++) {
    var pair = vars[i].split("=");
    if (pair[0] == variable) {
      return pair[1];
    }
  } 
}

function hideLayer(whichLayer) {
  if (browser=="Internet Explorer") {
    whichLayer = eval("document.all." + whichLayer + ".style");
//  } else if (browser=="Netscape Navigator") { //IS NETSCAPE 4 or below
//    whichLayer = document.layers[whichLayer];
  } else {
    whichLayer = document.getElementById(whichLayer).style;
  }
  whichLayer.visibility = 'hidden'
}
      
function showLayer(whichLayer) {
  if (browser=="Internet Explorer") {
    theLayer = eval("document.all." + whichLayer + ".style");
//  } else if (browser=="Netscape Navigator") { //IS NETSCAPE 4 or below
//    theLayer = document.layers[whichLayer];
  } else {    theLayer = document.getElementById(whichLayer).style;
  }
  theLayer.visibility = 'visible';
}  
function setupPage() {
  newHeight = 100;
  if (browser == "Internet Explorer") {
    ieOffset = 40;
  } else {
    ieOffset = 0;
  }
  if (document.getElementById("Column1")) {
    left = document.getElementById("Column1").offsetHeight;
    if (left > newHeight) {
      newHeight = left;
    }
  }
  if (document.getElementById("Column2")) {
    middle = document.getElementById("Column2").offsetHeight;
    if (middle > newHeight) {
      newHeight = middle;
    }
  }
  if (document.getElementById("Column3")) {
    right = document.getElementById("Column3").offsetHeight;
    if (right > newHeight) {
      newHeight = right;
    }
  }
  if (document.getElementById("edit_mainFrame")) {
    edit_container = document.getElementById("edit_mainFrame");  
    edit_container.style.height = newHeight+80;
  }
  container = document.getElementById("contentFrame");  
  container.style.height = newHeight-20+ieOffset;
}