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;
	  //alert("checking '" + a.getAttribute("title") + "' vs '" + title + "' matched?" + (a.getAttribute("title") == title) + " disabled? " + a.disabled);
    }
	
	
	
  }  
  
}

function rolloversChange(title) {  
	  
	       
			
			if(title.length > 4){  //check title does not equal null
				
			
				
				$(".backcolour").each(function(){
					var link = $(this).children("a");
					var image = $(link).children("img");
					var imgsrc = $(image).attr("src");
					
		
					var on = imgsrc.replace(/.png$/gi,title+".png");
					$(image).attr("src",on);
	       		})
				 
				$(".backcolour_small").each(function(){
					var link = $(this).children("a");
					var image2 = $(link).children("img");
					var imgsrc2 = $(image2).attr("src");
					
					var on = imgsrc2.replace(/.png$/gi,title+".png");
					$(image2).attr("src",on);
	       		})				 
				
				$(".tabcolour").each(function(){
					var link = $(this).children("a");
					var image = $(link).children("img");
					var imgsrc = $(image).attr("src");
					
					var on = imgsrc.replace(/.png$/gi,title+".png");
					$(image).attr("src",on);	
				})
				
				//refesh the page for changes in html image code to take effect
				$('.acc').click(function() {
					window.location.reload()
				});
				
			}
			else {
				//do not mess with the rollover images, leave them alone please
			}
			 
			
			
		
			
}

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();
  setActiveStyleSheet(title);
  rolloversChange(title);
}

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

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