var dom = document.getElementById ? true:false;
var ns4 = document.layers ? true:false;
var ie = document.all ? true:false;
var mac = navigator.appVersion.indexOf('Mac')!=-1 ? true:false;
var ie8 = navigator.appVersion.indexOf('8.0')!=-1 ? true:false;

function init(what) {
	if (what=="gallery") {
		initGallery();
	} else if (what=="cataleg") {
		initCataleg();
	}
}

function preload(imgObj,imgSrc) {
	eval(imgObj+" = new Image()");
	eval(imgObj+".src = '"+imgSrc+"'");
}

function changeImg(imgObj,imgSrc) {
	if (navigator.appVersion >= "3") {
		var imatge = eval(imgSrc+".src");
		document.images[imgObj].src = imatge;
	}
}

function saveCookie(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 deleteCookie(name) {
	saveCookie(name,"",-1);
}

var active_interface = readCookie("bamboo_interface");

if (active_interface!="b") {
	active_interface = "w";
}

function changeInterface(title) {
	saveCookie("bamboo_interface",title,365);
	active_interface = title;
	var newbackcolor = (title=='b') ? "#000000" : "#ffffff", newbackcoloron = (title=='b') ? "#999999" : "#e3e3e3";
	for (i=0;i<document.getElementsByTagName("a").length;i++) {
		var a = document.getElementsByTagName("a")[i];
		if ( (ie)&&(!ie8) ) {
			if (a.attributes["class"].nodeValue=="offlink") {
				a.style.background = newbackcolor;
			} else if (a.attributes["class"].nodeValue=="onlink") {
				a.style.background = newbackcoloron;
			}
		} else {
			if (a.getAttribute("class")=="offlink") {
				a.style.background = newbackcolor;
			} else if (a.getAttribute("class")=="onlink") {
				a.style.background = newbackcoloron;
			}
		}
	}
	setActiveStyleSheet(title);
}

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.getAttribute("title")=="b") {
			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;
}

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

var cookie = readCookie("bamboo_interface");
var title = cookie ? cookie : "w";
if (title == 'null') {
	title = "w";
}

var cookie = readCookie("bamboo_interface");
var title = cookie ? cookie : "w";
changeInterface(title);

function IsNumeric(strString) {
	var strValidChars = "0123456789";
	var strChar;
	var blnResult = true;
	if (strString.length == 0) {
		blnResult = false;
	} else {
		for (i=0; i<strString.length && blnResult==true; i++) {
			strChar = strString.charAt(i);
			if (strValidChars.indexOf(strChar) == -1) {
				blnResult = false;
			}
		}
	}
	return blnResult;
}

var nombre_thumbs = 0, nombre_pagines = 1, pagina_activa = 0;

function paginar(what) {
	var pagina = pagina_activa+what;
	if ( (pagina>=1)&&(pagina<=nombre_pagines)&&(pagina!=pagina_activa) ) {
		if (pagina_activa!=0) {
			document.getElementById("pagina_"+pagina_activa).style.display = "none";
		}
		pagina_activa = pagina;
		var p = (pagina_activa<10) ? "0"+pagina_activa : pagina_activa;
		var pp = (nombre_pagines<10) ? "0"+nombre_pagines : nombre_pagines;
		document.getElementById("pagina_"+pagina_activa).style.display = "inline";
		var str = '<div style="float: right; padding-top: 5px 0px 0px 10px;"><a href="javascript:void(null);" onclick="paginar(-1);return false;"><img src="fileadmin/templates/img/menys_w.gif" width="15" height="15" alt="&lt;" /></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href="javascript:void(null);" onclick="paginar(1);return false;"><img src="fileadmin/templates/img/mes_w.gif" width="15" height="15" alt="&gt;" /></a></div><div style="float: right;">'+p+'_'+pp+'</div>';
		document.getElementById("paginador").innerHTML = str;
	}
}