var XMLHttp = ajax();
var fix = false;
var fixEl = false;

// Ajax 
function ajax(handler) {
	var objXMLHttp=null
	if (window.XMLHttpRequest) {
		objXMLHttp = new XMLHttpRequest ();
		if (objXMLHttp.overrideMimeType) {
			objXMLHttp.overrideMimeType('text/xml');
		}
	}
	else if (window.ActiveXObject) { // For IE
		try {
			objXMLHttp = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				objXMLHttp = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}
	return objXMLHttp;
}

// intro over 
function introHighlite(id, state) {
  var ext = '';
  id = 'intro-'+id; 
  
  if(state == true) ext = '-over';
  document.getElementById(id).style.background = 'url(img/intro/'+id+ext+'.jpg) bottom left no-repeat';
  
}

// to favorite links
function AddFavorite(linkObj,addUrl,addTitle)
{
  if (document.all && !window.opera)
  {
    window.external.AddFavorite(addUrl,addTitle);
    return false;
  }
  else if (window.opera && window.print)
  {
    linkObj.title = addTitle;
    return true;
  }
  else if ((typeof window.sidebar == 'object') && (typeof window.sidebar.addPanel == 'function'))
  {
    if (window.confirm('Přidat oblíbenou stránku jako nový panel?'))
    {
      window.sidebar.addPanel(addTitle,addUrl,'');
      return false;
    }
  }
  return false;
}