var dom = document.getElementById ? true:false;
var ns4 = document.layers ? true:false;
var ie4 = document.all ? true:false;
var mac = navigator.appVersion.indexOf('Mac')!=-1 ? true:false;

function init() {
	blurLinks();
}

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 blurLinks() {
	if (dom) {
		lnks = document.getElementsByTagName('a');
		for (i=0;i<lnks.length;i++) {
			lnks[i].onfocus = new Function("if(this.blur) this.blur()");
		}
	} else if (ie4) {
		for (var i in document.links) {
			document.links[i].onfocus = document.links[i].blur;
		}
	}
}

function openWindow(url,nom,ww,hh,xx,yy,toolbarx,directoriesx,statusbarx,scrollbarsx,menubarx) {
	eval(nom+"=window.open('"+url+"','"+nom+"','toolbar="+toolbarx+",directories="+directoriesx+",status="+statusbarx+",scrollbars="+scrollbarsx+",menubar="+menubarx+",width="+ww+",height="+hh+",left="+xx+",top="+yy+",x="+xx+",posy="+yy+"')");
}