var switchs = new Array();
var sPreLoad = new Array();
var sImages;
var defaultStyle;

function changeBtn(id,title){
	for(i=0; i<switchs.length; i++){
		if(id == switchs[i][1]){
			switchs[i][0].setAttribute('src',switchs[i][3]);
		}else{
			switchs[i][0].setAttribute('src',switchs[i][2]);
		}
	}
	setActiveStyleSheet(title);
}

function initSizeSwitch() {
	if (!document.getElementById) return
	sImages = document.getElementsByTagName('img');
	var m=0;
	for (var i = 0; i < sImages.length; i++) {
		if (sImages[i].className == 'sizeSwitch') {
			var obj = sImages[i];
			var id = sImages[i].getAttribute('id');
			var src = sImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_o'+ftype);
			switchs[m] = new Array(obj,id,src,hsrc);
			m++;
			sPreLoad[i] = new Image();
			sPreLoad[i].src = hsrc;
		}
	}
	if(defaultStyle=="standard"){
		changeBtn("switch_s",defaultStyle);
	}else if(defaultStyle=="alternate1"){
		changeBtn("switch_m",defaultStyle);
	}else if(defaultStyle=="alternate2"){
		changeBtn("switch_l",defaultStyle);
	}
  initRollovers();
}




/*****************************************************************************/
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();
  defaultStyle = title;
}

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

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

/**************************************************************************************/
window.onload = initSizeSwitch;
/**************************************************************************************/