function getNewAjaxObject()
{
      var http;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
        http = new XMLHttpRequest();
        if (http.overrideMimeType) {
          // set type accordingly to anticipated content type
          http.overrideMimeType('text/html');
        }
      }
      else if (window.ActiveXObject) { // IE
        try {
          http = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
          try {
            http = new ActiveXObject("Microsoft.XMLHTTP");
          } catch (e) {}
        }
      }
      if (!http) {
        alert('Cannot create XMLHTTP instance');
        return false;
      }
      return http;

}



function update()
{

		var ajax	= getNewAjaxObject();
        var SOURCE  = "";

		ajax.open('POST', "info.php", true);


		ajax.onreadystatechange = function() {

			if (ajax.readyState == 4)
			{
				var a = eval('('+ajax.responseText+')');
                 ///  var a = eval(ajax.responseText);


                 if (a['source']=="no disponible") SOURCE=a['source'];
                 else SOURCE='<a href="'+a['source']+'" target="blank" >Pulsar aquí >></a>';

				document.getElementById('songtag').innerHTML   = a['song'];
			/*	document.getElementById('tstag').innerHTML     = a['ts'];*/
                document.getElementById('sourcetag').innerHTML = SOURCE;

                self.setTimeout('update()',a['reload']);


			} 
		}

	ajax.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
    ajax.send("");
}