function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}


        if (document.images) {            // Active Images
            img1on = new Image();
            img1on.src = "media/b_01_ov.gif";
            img2on = new Image();
            img2on.src = "media/b_02_ov.gif";
            img3on = new Image();
            img3on.src = "media/b_03_ov.gif";
            img4on = new Image();
            img4on.src = "media/b_ini_ov.gif";


            img1off = new Image();
            img1off.src = "media/b_01_nr.gif";
            img2off = new Image();
            img2off.src = "media/b_02_nr.gif";
            img3off = new Image();
            img3off.src = "media/b_03_nr.gif";
            img4off = new Image();
            img4off.src = "media/b_ini_nr.gif";

        }

// Function to 'activate' images.
function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
        }
}

// Function to 'deactivate' images.
function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
        }
}



function WriteDate(writeday)
{
	var mydate=new Date();
	var year=mydate.getYear();
	var day=mydate.getDay();
	var month=mydate.getMonth();
	var daym=mydate.getDate();
	if (year < 1000)
        year=year+1900;
	//if (daym < 10) daym="0"+daym;
	var dayarray=new Array('Dom','Lun','Mar','Mie','Jue','Vie','Sab');
	var montharray=new Array('Enero','Febrero','Marzo','Abril','Mayo','Junio','Julio','Agosto','Septiembre','Octubre','Noviembre','Diciembre');
	if (writeday)
		document.write(dayarray[day]+", ");
	document.write(daym+" de "+montharray[month]+" de "+year);
}

function WriteYear(writeday)
{
	var mydate=new Date();
	var year=mydate.getYear();
	var day=mydate.getDay();
	var month=mydate.getMonth();
	var daym=mydate.getDate();
	if (year < 1000)
        year=year+1900;
	//if (daym < 10) daym="0"+daym;
	var dayarray=new Array('Dom','Lun','Mar','Mie','Jue','Vie','Sab');
	var montharray=new Array('Enero','Febrero','Marzo','Abril','Mayo','Junio','Julio','Agosto','Septiembre','Octubre','Noviembre','Diciembre');
	if (writeday)
		document.write(dayarray[day]+", ");
	document.write(year);
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);




function ventana(URL)
	{
	var leftpos = (screen.width / 2) - 260;
	window.open(URL,'','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,width=520,height=400,left=' + leftpos + ',top=140')
	}