if ((navigator.appName=="Microsoft Internet Explorer")&&(navigator.appVersion.indexOf("4.")>=0))

	document.writeln('<LINK rel="stylesheet" href="css/estilos_ie.css" type="text/css">');   

else if((navigator.appName=="Netscape")&&(navigator.appVersion.indexOf("4.")>=0))

	document.writeln('<LINK rel="stylesheet" href="css/estilos_ns4.css" type="text/css">');

else if((navigator.appName=="Netscape")&&(navigator.appVersion.indexOf("5.")>=0))

	document.writeln('<LINK rel="stylesheet" href="css/estilos_ns5.css" type="text/css">');

else

	document.writeln('<LINK rel="stylesheet" href="css/estilos_ns4.css" type="text/css">');



function mapa(){

map=window.open('images/mapa.jpg','Mapa','toolbar=no,location=no,directories=no,scrollbars=no,status=no,menubar=no,resizable=no,width=480,height=480,top=80,left=80');

map.focus();

}



function swapImgRestore(){

	var i,x,a=document.sr;

	for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;

}

function swapImage(){

	var i,j=0,x,a=swapImage.arguments;

	document.sr=new Array;

	for(i=0;i<(a.length-2);i+=3)

		if ((x=findObj(a[i]))!=null){

			document.sr[j++]=x;

			if(!x.oSrc) x.oSrc=x.src;

			x.src=a[i+2];

		}

}

function findObj(n, d){

	var p,i,x;

	if(!d) d=document;

	if((p=n.indexOf("?"))>0&&parent.frames.length){

		d=parent.frames[n.substring(p+1)].document;

		n=n.substring(0,p);

	}

	if(!(x=d[n])&&d.all) x=d.all[n];

	for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];

	for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=findObj(n,d.layers[i].document);

	if(!x) x=document.getElementById(n);

	return x;

}

function preloadImages(){

	var d=document;

	if(d.images){

		if(!d.p) d.p=new Array();

		var i,j=d.p.length,a=preloadImages.arguments;

		for(i=0; i<a.length; i++)

			if (a[i].indexOf("#")!=0){

				d.p[j]=new Image;

				d.p[j++].src=a[i];

			}

	}

}