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];}
}
var newwindow;
var wheight = 0, wwidth = 0;
function popimg(url, title, iwidth, iheight, colour) {
	var pwidth, pheight;
	
	if ( !newwindow || newwindow.closed ) {
		pwidth=iwidth+30;
		pheight=iheight+30;
		newwindow=window.open('','htmlname','width=' + pwidth +',height=' +pheight + ',resizable=1,top=50,left=10');
		wheight=iheight;
		wwidth=iwidth;
	}
	
	if (wheight!=iheight || wwidth!=iwidth ) {
		pwidth=iwidth+30;
		pheight=iheight+60;
		newwindow.resizeTo(pwidth, pheight);
		wheight=iheight;
		wwidth=iwidth;
	}
	
	newwindow.document.clear();
	newwindow.focus();
	newwindow.document.writeln('<html> <head> <title>' + title + '<\/title> <\/head> <body bgcolor= \"' + colour + '\" oncontextmenu="alert(\'Puerta de Las Américas - Fotografia: Jaime Borda © Derechos Reservados\') ; return false"> <center>');
	newwindow.document.writeln('<a title="click para cerrar!" href="javascript:window.close();"><img src="'+ url + '" border=0></a>');
	newwindow.document.writeln('<\/center> <\/body> <\/html>');
	newwindow.document.close();
	newwindow.focus();
}

function nuevoAjax()
{ 
	var xmlhttp=false; 
	try 
	{ 
		// No IE
		xmlhttp=new ActiveXObject("Msxml2.XMLHTTP"); 
	}
	catch(e)
	{ 
		try
		{ 
			// IE 
			xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); 
		} 
		catch(E) { xmlhttp=false; }
	}
	if (!xmlhttp && typeof XMLHttpRequest!="undefined") { xmlhttp=new XMLHttpRequest(); } 
	return xmlhttp; 
}

function votar(id,id_usuario)
{
	var id=id;
	var ajax=nuevoAjax();
	ajax.open("POST", "php_ajax/votar.php", true);
	ajax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	ajax.send("id="+id);
	ajax.onreadystatechange=function(){
		if (ajax.readyState==4){
			var respuesta=ajax.responseText;
			if(respuesta=="OK")	{
				muestraMensaje(texto2,"mensaje_contacto")
			}else{  
				alert(respuesta);
			}
		}
	}
	
}


function login(){
	
	var email=document.login_cre.email.value;
	var pass=document.login_cre.pass.value;
	if (email!="" && pass!=""){
		
		var ajax=nuevoAjax();
		ajax.open("POST", "php_ajax/login_site.php", true);
		ajax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		ajax.send("email="+email+"&pass="+pass);
		ajax.onreadystatechange=function(){
		   if (ajax.readyState==4){
			 var respuesta=ajax.responseText;
			 if(respuesta=="OK")	{
				window.location.href= 'index.php';
			 }else{  
			 	alert("Sus datos no son correctos ó no ha confirmado su registro");
			 }
		  }
		}
		
	}else{
		alert("Ingrese email y password");
	
	}
	
}
