function loadUrl(strurl,strdest) {
	ajaxurl = 'http://www.artgaleriefortuna.com/'+strurl;
	ajaxtarget = strdest;
	if (window.XMLHttpRequest) { // code for Mozilla, etc.
		xmlhttp=new XMLHttpRequest();
		xmlhttp.onreadystatechange=xmlhttpChange;
		xmlhttp.open("GET",ajaxurl,true);
		xmlhttp.send(null);
	}
	else if (window.ActiveXObject) { // code for IE
		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
		if (xmlhttp) {
			xmlhttp.onreadystatechange=xmlhttpChange;
			xmlhttp.open("GET",ajaxurl,true);
			xmlhttp.send();
		}
	}
}

function xmlhttpChange() {
	var nuevoTexto = "";
	if (xmlhttp.readyState==4) {
		if (xmlhttp.status==200) {
			if (xmlhttp.responseText!="") {
				nuevoTexto = xmlhttp.responseText;
				document.getElementById(ajaxtarget).innerHTML = URLDecode(nuevoTexto);
			}
		} else {
			alert("Ha ocurrido un error al intentar recuperar los datos.");
		}
	}
}

function URLEncode(strEncode) {
	// The Javascript escape and unescape functions do not correspond
	// with what browsers actually do...
	var SAFECHARS = "0123456789" +					// Numeric
					"ABCDEFGHIJKLMNOPQRSTUVWXYZ" +	// Alphabetic
					"abcdefghijklmnopqrstuvwxyz" +
					"-_.!~*'()";					// RFC2396 Mark characters
	var HEX = "0123456789ABCDEF";

	var plaintext = strEncode;
	var encoded = "";
	for (var i = 0; i < plaintext.length; i++ ) {
		var ch = plaintext.charAt(i);
	    if (ch == " ") {
		    encoded += "+";				// x-www-urlencoded, rather than %20
		} else if (SAFECHARS.indexOf(ch) != -1) {
		    encoded += ch;
		} else {
		    var charCode = ch.charCodeAt(0);
			if (charCode > 255) {
			    alert( "Unicode Character '" 
                        + ch 
                        + "' cannot be encoded using standard URL encoding.\n" +
				          "(URL encoding only supports 8-bit characters.)\n" +
						  "A space (+) will be substituted." );
				encoded += "+";
			} else {
				encoded += "%";
				encoded += HEX.charAt((charCode >> 4) & 0xF);
				encoded += HEX.charAt(charCode & 0xF);
			}
		}
	} // for

	return encoded;
	return false;
}

function URLDecode(strDecode) {
   // Replace + with ' '
   // Replace %xx with equivalent character
   // Put [ERROR] in output if %xx is invalid.
   var HEXCHARS = "0123456789ABCDEFabcdef"; 
   var encoded = strDecode;
   var plaintext = "";
   var i = 0;
   while (i < encoded.length) {
       var ch = encoded.charAt(i);
	   if (ch == "+") {
	       plaintext += " ";
		   i++;
	   } else if (ch == "%") {
			if (i < (encoded.length-2) 
					&& HEXCHARS.indexOf(encoded.charAt(i+1)) != -1 
					&& HEXCHARS.indexOf(encoded.charAt(i+2)) != -1 ) {
				plaintext += unescape( encoded.substr(i,3) );
				i += 3;
			} else {
				alert( 'Bad escape combination near ...' + encoded.substr(i) );
				plaintext += "%[ERROR]";
				i++;
			}
		} else {
		   plaintext += ch;
		   i++;
		}
	} // while
   return plaintext;
   return false;
}


function photo_in() {
	var mydiv = "fotogrande";
	document.getElementById(mydiv).style.top = document.body.scrollTop+20;
	document.getElementById(mydiv).style.display = 'inline';
	
}

function photo_out() {
	var mydiv = "fotogrande";
	document.getElementById(mydiv).style.display = 'none';
	document.getElementById(mydiv).innerHTML = '';
}

function cambiotip(id) {
	document.location.href="index.php?tip="+id;
}


function MailLink (usuario, dominio, tld) {
	 //codifica los caracteres mas significativos
	 var arroba = '@'
	 var punto = '.'
	
	 //utiliza variables para ocultar las palabras clave
	 var etiqueta = 'ma' + '' + 'il'
	 var dospuntos = 'to:'
	 var localizador = usuario
	 localizador = localizador + arroba + dominio;
	 localizador = localizador + punto + tld;
	
	 //escribe en enlace
	 document.write('<a href="' + etiqueta + dospuntos + localizador + '">' + localizador + '</a>');
}

function ver_prod(id) {
	var newurl = 'ver_producto.php?id='+id;
	loadUrl(newurl,'fotogrande');
	photo_in();
}