// JavaScript Document

// HIGHLIGHT THE LINK IN THE NAV THAT RELATES TO THE CURRENT PAGE

function highlightLink() {
    if( !document.links )
    {
        document.links = document.getElementsByTagName("a");
    }
    for (var allLinks=0;allLinks<document.links.length;allLinks++) 
	{
        var lnk = document.links[allLinks];
		var x = lnk.href;
		var y = window.location;
		var z = lnk.className;
if (x==y && z=="lefNavLink") {lnk.style.color='#AA0040';}
	}
}

// STYLESWITCHER (AMENDED)

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;
}

function scipOnUnload() {
	scipUnloadStyle();
}

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


function scipUnloadStyle() {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

$(document).ready(scipLoadStyle);
$(document).ready(Styleswitcher_OnLoad)
$(document).ready(scipmakeLinkTitles)


function scipmakeLinkTitles() {
    var href;
	
	if( !document.links )
    {
        document.links = document.getElementsByTagName("a");
    }
    for (var ti=0;ti<document.links.length;ti++) 
	{
        var lnk = document.links[ti];
		href = lnk.href;
		if (href.substr(0,14)!="http://www.sci") {
			lnk.title=lnk.title+" (external link)";
			//lnk.style.color = "#f00";
			//lnk.style.backgroundImage = "url(/themes/scip/img/list_bullet.gif)";
		}
		if ((lnk.target=="_blank"))
		{
			lnk.title=lnk.title+" (opens in new window)";
		}
	}
}