function getObj(name)
{
  if (document.getElementById)
  {
  	this.obj = document.getElementById(name);
	this.style = document.getElementById(name).style;
  }
  else if (document.all)
  {
	this.obj = document.all[name];
	this.style = document.all[name].style;
  }
  else if (document.layers)
  {
	this.obj = getObjNN4(document,name);
	this.style = this.obj;
  }
}

function getObjNN4(obj,name)
{
	var x = obj.layers;
	var foundLayer;
	for (var i=0;i<x.length;i++)
	{
		if (x[i].id == name)
		 	foundLayer = x[i];
		else if (x[i].layers.length)
			var tmp = getObjNN4(x[i],name);
		if (tmp) foundLayer = tmp;
	}
	return foundLayer;
}

function toggle(tgthisid) {
	var y = new getObj(tgthisid);
	if (y.style.display != 'none') {
		y.style.display = 'none';
	}
	else {	
		y.style.display = 'block';
	}
}

function showmenu(showthisid) {
	var y = new getObj(showthisid);
	y.style.left = '-999em';
	y.style.left = 'auto';
	y.style.zindex = '0';
	}

function hidemenu(showthisid) {
	var y = new getObj(showthisid);
	y.style.left = '-999em';
	}

function showid(showthisid) {
	var y = new getObj(showthisid);
	y.style.visibility = 'visible';
	y.style.display = 'inline';
	}

function hideid(hidethisid) {
	var y = new getObj(hidethisid);
	y.style.visibility = 'hidden';
	y.style.display = 'none';
}


function showid2(tgdiv) {
	var y = new getObj(tgdiv);
	y.style.visibility = 'visible';
 }

function showid3(tgdiv) {
	var y = new getObj(tgdiv);
	y.style.visibility = 'visible';
	y.style.display = 'block';
 }

function hideid2(tgdiv) {
	var y = new getObj(tgdiv);
	y.style.visibility = 'hidden';
 }

function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
  createCookie("style", title, 365);
//  showid3(title);
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return "default";
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return "default";
}

function setTextSize(newsize) {
	newsize = newsize + "em";
	var y = new getObj("wrapper");
	y.style.fontSize = newsize;
	createCookie("fontsize",newsize,365);
}

function increaseText() {
	var y = new getObj("wrapper");
	var oldsize = y.style.fontSize;
	if (oldsize=="") { oldsize = "0.8em"; }
	oldsize = parseFloat(oldsize);
	newsize = oldsize + 0.1;
	setTextSize(newsize);

}

function decreaseText() {
	var y = new getObj("wrapper");
	var oldsize = y.style.fontSize;
	if (oldsize=="") { oldsize = "0.8em"; }
	oldsize = parseFloat(oldsize);
	newsize = oldsize - 0.1;
	setTextSize(newsize);
	
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

window.onload = function(e) {
	var OPERA = navigator.userAgent.indexOf("Opera") > -1 ? 1 : 0;
	var MAC = navigator.userAgent.indexOf("Mac") > -1 ? 1 : 0;
	if (!OPERA && navigator.appName == "Microsoft Internet Explorer" && MAC) {
//			alert("IE5  Mac!!!");
//			sfHover();
	 }
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
  var fs = parseFloat(readCookie("fontsize"));
	if (!fs>0) { fs = 0.8; }
	setTextSize(fs);
}

window.onunload = function(e) {
	var title = getActiveStyleSheet();
	createCookie("style", title, 365);
	var y = new getObj("wrapper");
	var fs = y.style.fontSize;
	createCookie("fontsize", fs, 365);
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);
  var fs = parseFloat(readCookie("fontsize"));
	if (!fs>0) { fs = 0.8; }
	//setTextSize(fs);