function getNumberFromPercent(str){
    var newstr = "";
    for(i=0; i < str.length - 1; i++){
        newstr += str.charAt(i);
     }
     return parseInt(newstr);
}
       
function getFontSize(sheetIndex) {
	//if (!document.styleSheets) return;
	//var theRules = new Array();
	//if (document.styleSheets[sheetIndex].cssRules)
		//theRules = document.styleSheets[sheetIndex].cssRules
	//else if (document.styleSheets[sheetIndex].rules)
		//theRules = document.styleSheets[sheetIndex].rules
	//else return;
	//return(theRules[0].style.fontSize);
	
	var x = document.body
	if (x.currentStyle){
	    var y = x.currentStyle["fontSize"];}
	else if (window.getComputedStyle){
	    var y = document.defaultView.getComputedStyle(x,null).getPropertyValue("fontSize");}
	return y
	//return(document.getElementById("page").style.fontSize);
}

function changeTextSize(magnification){
    cursize = magnification + '%';
    document.body.style.fontSize = cursize;
    
}    
function magnifyText(sheetIndex){
    var sizestr = getNumberFromPercent(cursize);
    var newsize = sizestr + 10;
    cursize = newsize + '%';
    document.body.style.fontSize = cursize; 
      
}
        
function demagnifyText(sheetindex){
    var sizestr = getNumberFromPercent(cursize);
    var newsize = sizestr - 10;
    cursize = newsize + '%';
    document.body.style.fontSize = cursize;
    
}

function RepaintWindow(){
    if (navigator.appName == "Microsoft Internet Explorer"){
	    BlurHandler = true;
	    //window.blur();
	    window.focus();
	    BlurHandler = false;
	    }
}

var pos = -10;
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;
    }
  }
  RepaintWindow();
  
}

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;
}

window.onload = function(e) {
  var cookie = readCookie("style");
  
  if (readCookie("fontSize")){
    var cookie2 = readCookie("fontSize");
    
    }
  else {
    var cookie2 = "75%";
    createCookie("fontSize", cookie2, 365);}
  
  var title = cookie ? cookie : getPreferredStyleSheet();
  cursize = cookie2 ? cookie2 : getFontSize(0);
  setActiveStyleSheet(title);
  //magnifyText(0);
  //demagnifyText(0);
  changeTextSize(getNumberFromPercent(cursize));
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  //var cursize = document.body.style.fontSize
  createCookie("style", title, 365);
  createCookie("fontSize", cursize, 365)
  //alert("style=" + title + " and size= " + cursize);
}



var cookie = readCookie("style");
var cookie2 = readCookie("fontSize");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);
var cursize = cookie2 ? cookie2 : getFontSize(0);