// JavaScript Document

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_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_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 VentanaCentrada(URL,ancho, alto, titulo)

{

  var width=ancho; height=alto;

  var left = (screen.width/2) - width/2;

  var top = (screen.height/2) - height/2;

  var styleStr = 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top;

   var msgWindow = window.open(URL,"Imagen_Ampliada", styleStr);

  msgWindow.focus();

 //         msgWindow.document.title = titulo;

}

function AbrirVentana(theURL,winName,features)
{
   
	neu=window.open(theURL,winName,features);
	neu.focus()
	neu.moveTo(Math.round((screen.availWidth-952)/2),Math.round((screen.availHeight-600)/2))  
}

//
function NuevoAjax(){
		
	var xmlhttp=false; 
		try { 
			xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); 
		} 
		catch (e) { 
			try { 
				xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); 
			} 
			catch (E) { 
				xmlhttp = false; 
			} 
		}
		if (!xmlhttp && typeof XMLHttpRequest!='undefined') { 
			xmlhttp = new XMLHttpRequest();
		}
		return xmlhttp;
}
	
function aleatorio(inferior,superior){ 
		numPosibilidades = superior - inferior 
		aleat = Math.random() * numPosibilidades 
		aleat = Math.round(aleat) 
		return parseInt(inferior) + aleat 
}
// Si es vacio devuelve FALSE
function compruebavacio(contenido)  {
     if (contenido.length==0) {
	      return false;
	   } else {
		   for (var i=0; i<contenido.length; ++i) {
		   	  if (contenido.charAt(i)!=' ' )
		         {
				   return true;
		         } 
		   }
	   }
	   return false; 
}
// Valida si es un email
function validaEmail(emailad) {
	var exclude=/[^@\-\.\w]|^[_@\.\-]|[\._\-]{2}|[@\.]{2}|(@)[^@]*\1/;
	var check=/@[\w\-]+\./;
	var checkend=/\.[a-zA-Z]{2,4}$/;
	
	if (emailad.value == "")
	{
		//alert("Debe introducir el email");
		//emailad.focus()
		//return false
		return true
		//Si esta vacio, el valor introducido en valido porque es un dato opcional.
	}	


	if(((emailad.value.search(exclude) != -1)||(emailad.value.search(check)) == -1)||(emailad.value.search(checkend) == -1))
	{
		//alert("Debe introducir un email correcto");
		//emailad.focus()
		return false;
	} else return true
}

function AbrirCentrado(theURL,winName,features,ancho,alto)
{
	neu=window.open(theURL,winName,features);
	neu.focus()
	neu.moveTo(Math.round((screen.availWidth-ancho)/2),Math.round((screen.availHeight-alto)/2))  
}