UAH = {



	// ======================================================

	// edit html class name for expandable element

	htmlclass : "desplegable",

	opened : "http://www.uah.es/medicina/images/flecha_opened.gif",

	closed : "http://www.uah.es/medicina/images/flecha_closed.gif",

	// edit html class name for activator

	acticlass : "activator",

	// edit images path for text sizer

	imgsizemas : "http://www.uah.es/medicina/images/A_3.gif",

	imgsizeigual : "http://www.uah.es/medicina/images/A_2.gif",

	imgsizemenos : "http://www.uah.es/medicina/images/A_1.gif",

	// edit text sizes

	sizemas : "18px",

	sizeigual : "16px",

	sizemenos : "14px",

	// you should not need to edit past this point

	// ======================================================

	start : function(){ 

		var cursor = (document.all)?"hand":"pointer";

		

		// add text sizers

		var sizers = "<img src='"+UAH.imgsizemenos+"' onclick='UAH.txtSizer(\""+UAH.sizemenos+"\")' style='cursor:"+cursor+"'>";

		sizers += "<img src='"+UAH.imgsizeigual+"' onclick='UAH.txtSizer(\""+UAH.sizeigual+"\")' style='cursor:"+cursor+"'>";

		sizers += "<img src='"+UAH.imgsizemas+"' onclick='UAH.txtSizer(\""+UAH.sizemas+"\")' style='cursor:"+cursor+"'>";

		var div = document.createElement("DIV");

		div.id = "txtsizer";

		div.innerHTML = sizers;

		if(!window.opera) document.getElementById("rightnav").insertBefore(div, document.getElementById("enlacesgraficos"));



		// set user text size from cookie (if exists)

		if(Cookie.get("UAH_txtsize")) document.body.style.fontSize = Cookie.get("UAH_txtsize");

		

		// prepare expandable menu elements

		var expandibles = UAH.hasClass(UAH.htmlclass);

		for (var i = 0; i < expandibles.length; i++) {

			

			// getting elements:

			var sublist = expandibles[i];

			var parentlist = sublist.parentNode;

			var children = parentlist.childNodes;

			for (var z = 0; z < children.length; z++) {

				if(children[z].nodeType==1) {

					var container =  children[z];

					break;

				}

			}



			//avoids currentStyle/computedStyle:

			sublist.style.display = "none"; 



			// create actuator image:

			var img = document.createElement("IMG"); 

				img.src = UAH.opened;

				img.setAttribute ("width","7px");

				img.setAttribute ("height","7px");

			var txt = document.createTextNode(" "); 

			container.appendChild(txt);

			container.appendChild(img);

			

			// add onmouseover cursor:

			container.style.cursor = cursor; 



			// add class to activator:

			if(container.className) container.className += " " + UAH.acticlass; 

			else container.className = UAH.acticlass; 

			

			// prepare events for each element:

			UAH.prepare(container,sublist,img); 

		}

	},

	

	prepare : function(container,sublist,img) { 

		container.onclick = function(){ 

			UAH.run(container,sublist,img); 

		}

	}, 

	

	run : function(container,sublist,img) { 

		//if sublist is visible, then just hide it:

		if(sublist.style.display == "block") {

			container.style.color = "#1E2D3B";

			container.style.fontWeight = "normal";

			sublist.style.display = "none";

			img.src = UAH.opened;

		}

			

		//else hide all and then show this one:

		else {	

			// first we hide all submenus

			var expandibles = UAH.hasClass(UAH.htmlclass);

			for (var e = 0; e < expandibles.length; e++) {

				var tobehidden = expandibles[e];

				tobehidden.style.display = "none";

			}

				

			// then we re-style all activators

			var activators = UAH.hasClass(UAH.acticlass);

			for (var a = 0; a < activators.length; a++) {

				var toberestyled = activators[a];

				toberestyled.style.color = "#00209F";

				toberestyled.style.fontWeight = "normal";

			}

				

			// then we change all image activators to closed

			var imgs = document.getElementById("menu").getElementsByTagName("IMG");

			for (var i = 0; i < imgs.length; i++) {

				var myimg = imgs[i];

				myimg.src = UAH.opened;

			}



			// then we show this sublist again

			container.style.color = "#0082D1";

			container.style.fontWeight = "bold";

			sublist.style.display = "block";

			img.src = UAH.closed;

		}

	}, 

	

	txtSizer : function(size){

		document.body.style.fontSize = size;

		Cookie.set("UAH_txtsize",size,1);

	},



	// Method adapted from Dan Pupius (pupius.co.uk):

	hasClass : function(className,node) {

		if(!node) node=document;

		var refTags = document.all ? document.all : node.getElementsByTagName("*");

		var retVal = new Array();

		for(var z=0;z<refTags.length;z++) {

			//if(refTags[z].className == className) 

			if(refTags[z].className.indexOf(className) > -1) 

			retVal.push(refTags[z]);

		}

		return retVal; 

	}

}



// Cookie namespace, by Dave Schontzler, www.stilleye.com

Cookie = {

	set : function(name,value,days,path)

	{

		var ex = "";

		if(days)

		{

			var d = new Date();

			d.setTime(d.getTime()+(days*24*60*60*1000));

			ex = "; expires="+d.toGMTString();

		}

		path = path ? path : "/";

		document.cookie = name + "=" + escape(value) + ex + "; path=" + path;

	},

	

	get : function(name)

	{

		var c = document.cookie.split(';');

		var wh = name + '=';

		for(i=0;(j=c[i]);i++)

		{

			while(j.charAt(0)==' ') j = j.substring(1, j.length);

			if(j.indexOf(wh)==0) return unescape(j.substring(wh.length));

		}

		return null;

	},

	

	kill : function(name) { Cookie.set(name,'',-1); }

}

// adds 1 or more elements to an array (IE only)

if(!Array.prototype.push)

{

	Array.prototype.push =  function()

	{

		var i;

		for(i=0; j=arguments[i]; i++) this[this.length] = j;

		return this.length;

	}

}

if (document.getElementsByTagName) window.onload = UAH.start;