// Check if browser is DOM complainant
if (document.getElementById){
		// toggle div visibility 
		function toggle( targetId ){
				target = document.getElementById( targetId );
					if (target.style.display == "none"){
						target.style.display = "";
					} else {
						target.style.display = "none";
					}
		}

		// Fix Cleardiv for Mac
		function fixmacie(classname){        
		var divs=document.getElementsByTagName("DIV");   
		  for(var d=0; d < divs.length;d++){     
		 if(divs[d].className.indexOf(classname)==0){    
		 divs[d].innerHTML+= "<div class='mac-clearfix'> </div>"; 
		 } } }
		 
		if( navigator.appVersion.indexOf('Mac')!=-1 && document.all){     
			fixmacie("clearfix");  
		}


	// Replace image - Jacobus van Niekerk Feb 2004
	function replaceimg (id,attribute,value,title) {
			document.getElementById(id).setAttribute(attribute,value)
			document.getElementById(id).setAttribute('title',title)
			document.getElementById(id).setAttribute('alt',title)
		}


	//Reads CSS values
	function getElementStyle(elemID, IEStyleProp, CSSStyleProp) {
		var elem = document.getElementById(elemID);
		if (elem.currentStyle) {
			//return elem.currentStyle[IEStyleProp];
			return elem.offsetHeight;
		} else if (window.getComputedStyle) {
			var compStyle = window.getComputedStyle(elem, "");
			return compStyle.getPropertyValue(CSSStyleProp);
		}
		return "";
	}	

}

if (document.getElementById){
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;
    }
  }
}

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");
  var title = cookie ? cookie : getPreferredStyleSheet();
	if (title == "null" || title == "") {
		title = "small";
	}
  setActiveStyleSheet(title);
}

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

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);
}