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 MM_findObj(n, d) { //v4.01
	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=MM_findObj(n,d.layers[i].document);
	if(!x && d.getElementById) x=d.getElementById(n); return x;
}

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];}}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
	window.open(theURL,winName,features);
}

function GP_AdvOpenWindow(theURL,winName,features,popWidth,popHeight,winAlign,ignorelink,alwaysOnTop,autoCloseTime,borderless) { //v2.0
	var leftPos=0,topPos=0,autoCloseTimeoutHandle, ontopIntervalHandle, w = 480, h = 340;	
	if (popWidth > 0) features += (features.length > 0 ? ',' : '') + 'width=' + popWidth;
	if (popHeight > 0) features += (features.length > 0 ? ',' : '') + 'height=' + popHeight;
	if (winAlign && winAlign != "" && popWidth > 0 && popHeight > 0) {
		if (document.all || document.layers || document.getElementById) {w = screen.availWidth; h = screen.availHeight;}
		if (winAlign.indexOf("center") != -1) {topPos = (h-popHeight)/2;leftPos = (w-popWidth)/2;}
		if (winAlign.indexOf("bottom") != -1) topPos = h-popHeight; if (winAlign.indexOf("right") != -1) leftPos = w-popWidth; 
		if (winAlign.indexOf("left") != -1) leftPos = 0; if (winAlign.indexOf("top") != -1) topPos = 0; 						
		features += (features.length > 0 ? ',' : '') + 'top=' + topPos+',left='+leftPos;}
	if (document.all && borderless && borderless != "" && features.indexOf("fullscreen") != -1) features+=",fullscreen=1";
	if (window["popupWindow"] == null) window["popupWindow"] = new Array();
	var wp = popupWindow.length;
	popupWindow[wp] = window.open(theURL,winName,features);
	if (popupWindow[wp].opener == null) popupWindow[wp].opener = self;	
	if (document.all || document.layers || document.getElementById) {
		if (borderless && borderless != "") {popupWindow[wp].resizeTo(popWidth,popHeight); popupWindow[wp].moveTo(leftPos, topPos);}
		if (alwaysOnTop && alwaysOnTop != "") {
			ontopIntervalHandle = popupWindow[wp].setInterval("window.focus();", 50);
			popupWindow[wp].document.body.onload = function() {window.setInterval("window.focus();", 50);}; }
		if (autoCloseTime && autoCloseTime > 0) {
			popupWindow[wp].document.body.onbeforeunload = function() {
				if (autoCloseTimeoutHandle) window.clearInterval(autoCloseTimeoutHandle);
				window.onbeforeunload = null;	}	
	 		autoCloseTimeoutHandle = window.setTimeout("popupWindow["+wp+"].close()", autoCloseTime * 1000); }
		window.onbeforeunload = function() {for (var i=0;i<popupWindow.length;i++) popupWindow[i].close();}; }	 
	document.MM_returnValue = (ignorelink && ignorelink != "") ? false : true;
}

function isValidEmail(str) {
	 return (str.indexOf(".") > 2) && (str.indexOf("@") > 0); 
}

function procesar() {
	errores = false;
	mensaje = "Se encontraron errores al procesar el formulario:\n";

	p = MM_findObj("form1");
	
	if (p.nombre.value == "") {
		errores = true;
		mensaje = mensaje + " - El nombre es un dato requerido.\n";
	}
	if (p.email.value == "") {
		errores = true;
		mensaje = mensaje + " - El e-mail de contacto es un dato requerido.\n";
	}
	else {
		if (!isValidEmail(p.email.value)) {
			errores = true;
			mensaje = mensaje + " - El e-mail introducido no es correcto.\n";
		}
	}
	if (p.comentarios.value == "") {
		errores = true;
		mensaje = mensaje + " - Debes introducir tu comentario, sugerencia, consulta...\n";
	}

	if (errores == false){
		p.submit();
	}
	else {
		alert(mensaje);
	}
}

function ocultar(str_id) 
{
	if(document.getElementById){
		document.getElementById(str_id).style.display="none";
	}	
	else if(document.all){
		document.all[str_id].style.display="none";				
	}	
	else if(document.layers){
		document.layers[str_id].display="none";
	}	
}

function mostrar(str_id) 
{
	if(document.getElementById){
		document.getElementById(str_id).style.display="block";
	} 
	else if(document.all){
		document.all[str_id].style.display="block";
	}
	else if(document.layers){
		document.layers[str_id].display="block";
	}
} 

function modificar(str_id) 
{	
	if(document.getElementById) {				
		if(document.getElementById(str_id).style.display=="block")
			document.getElementById(str_id).style.display="none";							
		else if(document.getElementById(str_id).style.display=="none")
			document.getElementById(str_id).style.display="block";													
	} 
	else if(document.all) {		
		if(document.all[str_id].style.display=="block")
			document.all[str_id].style.display="none";
		else if(document.all[str_id].style.display=="none")
			document.all[str_id].style.display="block";				
	}
	else if(document.layers) {		
		if(document.layers[str_id].display=="block")
			document.layers[str_id].display="none";
		else if(document.layers[str_id].display=="none")
			document.layers[str_id].display="block";				
	}	
}