// PRINT

function writePrintButton() {
	if (window.print) {
		document.write ('<a href="javascript:window.print();" class="textLink"><img src="/img/pageaction_skriv_ut_sidan.gif" width="75" height="18" alt="Skriv ut sidan" /></a>');
	}
}


// NAVI

naviHover = function() {
	var naviElements = document.getElementById("navi1").getElementsByTagName("LI");
	for (var i=0; i<naviElements.length; i++) {
		naviElements[i].onmouseover=function() {
			this.className+=" naviHover";
		}
		naviElements[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" naviHover\\b"), "");
		 }
	}
}

if (window.attachEvent) window.attachEvent("onload", naviHover);




// STYLE SWITCH

function writeTextSizeButtons() {
	document.writeln('<a href="javascript:setActiveStyleSheet(\'small\');"><img src="/img/button_font_small.gif" width="28" height="19" alt="a-" title="Byt till liten fontstorlek" name="small" /></a>');
	document.writeln('<a href="javascript:setActiveStyleSheet(\'normal\');"><img src="/img/button_font_normal.gif" width="28" height="19" alt="a" title="Byt till normal fontstorlek" name="normal" /></a>');
	document.writeln('<a href="javascript:setActiveStyleSheet(\'large\');"><img src="/img/button_font_large.gif" width="28" height="19" alt="a+" title="Byt till stor fontstorlek" name="large" /></a>');
}

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.images && document.images["small"]) {
  	document.images["small"].src = "/img/button_font_small.gif";
  	document.images["normal"].src = "/img/button_font_normal.gif";	
  	document.images["large"].src = "/img/button_font_large.gif";	
  	document.images[title].src = "/img/button_font_"+title+"_active.gif";
  }
}

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);
}

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

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