var local = "App_Themes/default/styles/";

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;
	  }
	}
  }    
  
  if (document.getElementById("slink") != null)
  {
	  if (title == "stxt")
	  {
		document.getElementById("slink").className = "sel";
		document.getElementById("mlink").className = "";        
		document.getElementById("llink").className = "";
	  }
	  else if (title == "mtxt")
	  {
		document.getElementById("mlink").className = "sel";
		document.getElementById("slink").className = "";
		document.getElementById("llink").className = "";
	  }
	  else if (title == "btxt")
	  {
		document.getElementById("llink").className = "sel";
		document.getElementById("mlink").className = "";        
		document.getElementById("slink").className = "";
	  }
  }  
}

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;
}

function setActiveImage(title,flg){
	if(flg==1){
		alt_txt= Array("Text size","Smaller font size","Standard font size","Bigger font size");
		bt_arr = Array(1,2,3);
	} 
	// reserved for localization
	document.write('<dl><dt><img src="'+local+'images/char_size.gif" alt="'+alt_txt[0]+'" width="65" height="16" style="border-bottom:2px solid #FFF;"></dt><dd id="stxt"><a id="slink" name="slink" href="javascript: void(0);" onclick="setActiveStyleSheet(\'stxt\'); return false;" onkeypress="setActiveStyleSheet(\'stxt\'); return false;" title="'+alt_txt[1]+'"><img src="'+local+'images/char_small.gif" alt="'+alt_txt[1]+'" name="fontchimg1" width="21" height="16"></a></dd><dd id="mtxt"><a id="mlink" href="javascript: void(0);" onclick="setActiveStyleSheet(\'mtxt\'); return false;" onkeypress="setActiveStyleSheet(\'mtxt\'); return false;" title="'+alt_txt[2]+'"><img src="'+local+'images/char_medium.gif" alt="'+alt_txt[2]+'" name="fontchimg2" width="21" height="16"></a></dd><dd id="ltxt"><a id="llink" href="javascript: void(0);" onclick="setActiveStyleSheet(\'btxt\'); return false;" onkeypress="setActiveStyleSheet(\'btxt\'); return false;" title="'+alt_txt[3]+'"><img src="'+local+'images/char_large.gif" alt="'+alt_txt[3]+'" name="fontchimg3" width="21" height="16"></a></dd></dl>');
}

window.onload = function(e) {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
	
}

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

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