var currentSizeAIndex=2;

	if (document.layers) {
			origWidth = window.innerWidth
			origHeight = window.innerHeight
		}
	
	function resizeFix() {
		if (document.layers) {
			if (window.innerWidth != origWidth || window.innerHeight != origHeight) {
				window.location.reload()
			}
		}
	}
	
	function adjustLayout(){
/*
		// Get natural heights
		var cHeight = xHeight("mainpanel");
		var lHeight = xHeight("leftpanel");
		var rHeight = xHeight("rightpanel");
	
		// Find the maximum height
		var maxHeight =
		Math.max(cHeight, lHeight,rHeight);
	
		// Assign maximum height to all columns
		xHeight("mainpanel", maxHeight);
		xHeight("leftpanel", maxHeight);
		xHeight("rightpanel", maxHeight);
	
		// Show the footer
		xShow("footer");
*/
	}
	
	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 currentSizeAIndex = readCookie("size");
		var cookie = readCookie("style");
		var title = cookie ? cookie : getPreferredStyleSheet();
		setActiveStyleSheet(title);
	 	xAddEventListener(window, "resize", adjustLayout, false);
		adjustLayout();
		resizeFix();

	}

	window.onunload = function(e) {
		var title = getActiveStyleSheet();
		createCookie("style", title, 365);
		if (currentSizeAIndex == null) currentSizeAIndex=2;
		createCookie("size",  currentSizeAIndex, 365);
	}

	var currentSizeAIndex = readCookie('size');
	var cookie = readCookie('style');
	var title = cookie ? cookie : getPreferredStyleSheet();
	setActiveStyleSheet(title);



	//... esto va de tama–os
	var sizeA = new Array('xx-small','x-small','small','medium','large','x-large','xx-large');
	sizeA.length=5; // this makes only the first 5 keywords available
	
	if (document.layers) {
		rule='<style type="text\/css">body, div, p, blockquote, form {font-size: 14px; font-family: "Trebuchet MS", Verdana, Arial, Helvetica, sans-serif;}<\/style>';
		document.write(rule)
	}
	currentSizeAIndex = 1;

	if (readCookie('size')!='') {
		currentSizeAIndex = readCookie('size')
		rule='<style type="text\/css">body{font-size: '+sizeA[currentSizeAIndex]+';}<\/style>';
		document.write(rule)
	}
	
	function changeFontSize(i) {
		var newSizeAIndex = currentSizeAIndex-(-i);
		if (newSizeAIndex<0 || newSizeAIndex==sizeA.length) return false;
			activateButton('sizeUp');
			activateButton('sizeDown');
		if (newSizeAIndex==0) fadeButton('sizeDown');
		if (newSizeAIndex==sizeA.length-1) fadeButton('sizeUp');
		document.body.style.fontSize=sizeA[newSizeAIndex];
		currentSizeAIndex = newSizeAIndex;
		// let's stuff it in a cookie so we can remember it
		createCookie('size',  newSizeAIndex, 365);
		// NS6 won't properly apply the changes in abs positioned divs unless we do
		// this trickery:
		if (!document.all) { 
			e = document.getElementsByTagName('body')[0];
			e.parentNode.replaceChild(e,e);
		}
		//menu.moveEm()
		window.location.reload()
	}
	function fadeButton(bId) {
		var button = document.getElementById(bId);
		button.blur();
		button.disabled='disabled';
		//.. button.style.borderColor='#999';
		//.. button.style.color='#999';
		}
	
	function activateButton(bId) {
		var button = document.getElementById(bId);
		button.disabled=null;
		//.. button.style.borderColor='#000';
		//.. button.style.color='#000';
	}