navegador = navigator.appName;
if (navegador=="Microsoft Internet Explorer"){
	versio=navigator.appVersion;
	if (versio.indexOf("MSIE 7.0")!=-1){
		document.writeln("<link href='css/estils_mirador.css' rel='stylesheet' type='text/css' />");
	}else{
		document.writeln("<link href='css/estils_mirador_ie6.css' rel='stylesheet' type='text/css' />");
	}
}else{
	document.writeln("<link href='css/estils_mirador.css' rel='stylesheet' type='text/css' />");
}


function obrir_finestra(pagina, intW, intH){
	var myLeft = (screen.width-intW)/2;
	var myTop = (screen.height-intH)/2;
	
	var opciones="toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, width="+intW+", height="+intH+", top="+myTop+", left="+myLeft+"";
	window.open(pagina,"",opciones);
}

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

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

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_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_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function valFrmLogin(tf){
	valOK = true;
	if(tf.usuario.value.length == 0 && valOK){
		tf.x_alert.value = strAlert_a;
		valOK = false;
		tf.usuario.focus();
	}
	if(tf.password.value.length == 0 && valOK){
		tf.x_alert.value = strAlert_b;
		valOK = false;
		tf.password.focus();
	}
	if(valOK){
		if(!IsAlphaNum(tf.usuario.value) || !IsAlphaNum(tf.password.value)){
			valOK = false;
			tf.x_alert.value = strAlert_c;
		}
	}
			
	return valOK
}

function validaMail(strM){
	valMail = true;
	if ((strM.indexOf("@") < 0 || strM.indexOf(".") < 0) && valMail){
		valMail = false;
	}
	if (strM.indexOf("@") > strM.lastIndexOf(".") && valMail){
		valMail = false;
	}
	if (strM.indexOf("@") == strM.lastIndexOf(".") - 1 && valMail){
		valMail = false;
	}
	if (strM.lastIndexOf(".") == strM.length - 1 && valMail){
		valMail = false;
	}
	return valMail
}

function valFrmContact(tf){
	valOK = true;
	if(tf.x_nombre.value.length == 0 && valOK){
		tf.x_alert.value = strAlert_nom;
		valOK = false;
		tf.x_nombre.focus();
	}
	if(tf.x_apellidos.value.length == 0 && valOK){
		tf.x_alert.value = strAlert_cognom;
		valOK = false;
		tf.x_apellidos.focus();
	}
	if(tf.x_mail.value.length == 0 && valOK){
		tf.x_alert.value = strAlert_email;
		valOK = false;
		tf.x_mail.focus();
	}
	if (!validaMail(tf.x_mail.value) && valOK){
		valOK = false;
		tf.x_alert.value = strAlert_email2;
		tf.x_mail.focus();
	}
	if(tf.x_direccion.value.length == 0 && valOK){
		tf.x_alert.value = strAlert_direccion;
		valOK = false;
		tf.x_direccion.focus();
	}
	if(tf.x_cp.value.length == 0 && valOK){
		tf.x_alert.value = strAlert_cp;
		valOK = false;
		tf.x_cp.focus();
	}
	if(tf.x_pais.value.length == 0 && valOK){
		tf.x_alert.value = strAlert_pais;
		valOK = false;
		tf.x_pais.focus();
	}
	if(tf.x_telefono.value.length == 0 && valOK){
		tf.x_alert.value = strAlert_telefono;
		valOK = false;
		tf.x_telefono.focus();
	}
	if(tf.x_comentario.value.length == 0 && valOK){
		tf.x_alert.value = strAlert_comentario;
		valOK = false;
		tf.x_comentario.focus();
	}
	if(tf.x_politica.checked == false && valOK){
		tf.x_alert.value = strAlert_politica;
		valOK = false;
		tf.x_politica.focus();
	}
	if(valOK){ tf.submit(); }
	//return false; //valOK;
}

function addBookmark(title,url) {
	if (window.sidebar) {
		window.sidebar.addPanel(title, url,"");
	} else if( document.all ) {
		window.external.AddFavorite( url, title);
	} else if( window.opera && window.print ) {
		return true;
	}
}

function IsAlphaNum( str ) {
	if (str+"" == "undefined" || str+"" == "null" || str+"" == "") return false;

	var isValid = true;
    str += "";          
    for (i = 0; i < str.length; i++){
    	if (!(((str.charAt(i) >= "0") && (str.charAt(i) <= "9")) || ((str.charAt(i) >= "a") && (str.charAt(i) <= "z")) || ((str.charAt(i) >= "A") && (str.charAt(i) <= "Z")))){
			isValid = false;
			break;
		}          
	}    
	return isValid;
}