var Mac = navigator.appVersion.indexOf('Mac',0) != -1;
var Win = navigator.appVersion.indexOf('Win',0) != -1;
var IE  = navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1;
var NN  = navigator.appName.indexOf("Netscape",0) != -1;
var Moz = navigator.userAgent.indexOf("Gecko") != -1;
var Vmajor = parseInt(navigator.appVersion); // ex. 3
var Vminor = parseFloat(navigator.appVersion); // ex. 3.01

var MacIE4 = ((Mac && navigator.appVersion.indexOf('MSIE 4.',0) != -1));
var MacIE3 = ((Mac && navigator.appVersion.indexOf('MSIE 3.',0) != -1));

function setObj(id) {
 if (document.all) {
  return document.all(id);
 } else if (document.getElementById) {
  return document.getElementById(id);
 } else if (document.layers) {
  return document.layers[id];
 }
 return false;
}

function getScrollLeft() { // 020225
 if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {
  return document.body.scrollLeft;
 } else if (window.pageXOffset) {
  return window.pageXOffset;
 } else {
  return 0;
 }
}

function getScrollTop() { // 020225
 if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {
  return document.body.scrollTop;
 } else if (window.pageYOffset) {
  return window.pageYOffset;
 } else {
  return 0;
 }
}

// --------------------
// layer
// --------------------

function swapImage(target,src) {
 if (document.images) document.images[target].src = src;
}

function getAnchorPosObj(elementname, elementid) {
 var obj = setObj(elementname);
 var objnew = new Object();
 var objtmp;

 if (document.getElementById && IE) {
  objtmp = obj;
  objnew.x = objtmp.offsetLeft;
  objnew.y = objtmp.offsetTop;
  while ((objtmp = objtmp.offsetParent) != null) {
   objnew.x += objtmp.offsetLeft;
   objnew.y += objtmp.offsetTop;
  }
 } else if (document.getElementById && Moz) {
//  objnew.x = document.getElementsByTagName("A").namedItem(elementname).offsetLeft;
//  objnew.y = document.getElementsByTagName("A").namedItem(elementname).offsetTop;
  objnew.x = document.getElementsByTagName("DIV").namedItem(elementid).offsetLeft;
  objnew.y = document.getElementsByTagName("DIV").namedItem(elementid).offsetTop;
 } else if (document.all) {
  objtmp = obj;
  objnew.x = objtmp.offsetLeft;
  objnew.y = objtmp.offsetTop;
  while ((objtmp = objtmp.offsetParent) != null) {
   objnew.x += objtmp.offsetLeft;
   objnew.y += objtmp.offsetTop;
  }
 } else if (document.layers) {
  objnew.x = document.anchors[elementname].x;
  objnew.y = document.anchors[elementname].y;
 } else {
  objnew.x = 0;
  objnew.y = 0;
 }
 return objnew;
}

function jumpToAnchor(elementname, elementid) {
 if (getAnchorPosObj(elementname, elementid).x != 0 || getAnchorPosObj(elementname, elementid).y != 0) {
  pageScroll(0,getAnchorPosObj(elementname, elementid).y,5);
 } else {
  location.hash = elementname;
 }
}