function nermCol() {

    //lCol = document.getElementById("LeftCol").offsetHeight;
    cCol = document.getElementById("main").offsetHeight;
	//document.getElementById("test").value = cCol;   
	document.getElementById("NavCol").style.height = cCol + "px";
	//document.getElementById("LeftCol").style.height = Math.round(cCol) - Math.round(sCol) + "px";
}


var currentStyle = "";
function setActiveStyleSheet(title) {
  var i, a, main;
currentStyle = title;
  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;
    }
  }
}

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 null;
}

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 null;
}

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;
}

// font size
var currentSize = 100;

function setFontSize(ev, percentage, prevent)
{
    if (document.getElementsByTagName) {
	currentSize = percentage;
	document.getElementsByTagName("body")[0].style.fontSize = currentSize + '%';

	if (window.event) {
	    window.event.returnValue = false;
	} else {
	    ev.preventDefault();
	}
    }
}

function decreaseFontSize(ev)
{
    setFontSize(ev, currentSize / 1.1, true);
//	nermCol();
}
function defaultFontSize(ev)
{
//    	nermCol();
setFontSize(ev, 100, true);
}
function increaseFontSize(ev)
{
    setFontSize(ev, currentSize * 1.1, true);
//	nermCol();
}
// end font size

window.onload = function(e) {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  var size = readCookie("size");
  setActiveStyleSheet(title);
  if (size) setFontSize(e, size, false);
// external links
  if (!document.getElementsByTagName) return;
  var anchors = document.getElementsByTagName("a");
  for (var i=0; i<anchors.length; i++) {
  var anchor = anchors[i];
  if (anchor.getAttribute("href") &&
  anchor.getAttribute("rel") == "external")
  anchor.target = "_blank";
 }
// end external links  
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
  createCookie("size", currentSize, 365);
}