// decrypt hidden email-adress and open mailer
function cmailto( cryptedaddr ) {
  var str = unescape( cryptedaddr );
  var url = "mailto:";
  for ( var i=0; i < str.length; i++ ) {
    var char = str.charCodeAt(i) + i + 1;
    url = url.concat( unescape( "%" + char.toString( 16 ) ) );
  }
  location.href = url;
}





// show/hidde item. toggles

// name: name of element to be shown/hidden
// value (optional): value to be set (block, inline, none etc)
//
// if these values are given, the caption of the button is altered
// buttonname (opt): name of button element to be altered 
// bscaption (opt): innerHTML to show when element is shown
// bhcaption (opt): innerHTML when it is hidden


function show( element, value, button, bscaption, bhcaption, savecookie ) {
   // get list of elements to be passed
  var elist = getElements( element );
  var blist = button ? getElements( button ) : new Array();
   // value to be set
  var value = value ? value : (elist.length ? 
              ((elist[0].style.display=='none') ? 'block' : 'none' ) :
              false );
   // now hide / show buttons
  for ( var i=0; i < elist.length; i++ ) {
    showElement( elist[i], value );
  }
   // modify caption of hide/show button 
  for ( var i=0; i < blist.length; i++ ) {
    var bvalue = toggleButton( blist[i], value, bscaption, bhcaption ); 
  }
  
  // save cookie if needed
  if ( savecookie ) {
    document.cookie = "display_" + savecookie + "=" + value;
    if ( blist.length ) {
        document.cookie = "button_x" + savecookie + "=" + 
                           ((value=='none') ? bvalue : "") + ";";
    }
  }
  return value;                
}

function remove_element( element ) {
	elm = getElements( element )[0];
	elm.parentNode.removeChild( elm );
}



  // determine element(s) to be handled
  // return an array of element(s) 
  // hook may be:
  //  an html element with style property
  //  an id of an element
  //  a name of such element(s)
function getElements( hook ) {
  if ( hook && hook.style ) {
    var elist = new Array( hook );   
  } else { // otherwise lets see if there are elemnts with that name
    var elist = document.getElementsByName( hook );
    if ( elist.length == 0 ) { // maybe there is one with that ID
      elm = document.getElementById( hook );
      var elist = elm ? new Array( elm ) : new Array();      
    }	 
  }
  return elist;
}


function showElement( element, value ) {
 if (element.style) {
   return element.style.display = value ? value : 
           ((element.style.display == 'none') ? 'block' : 'none' ); 
 } else {
   return false;
 }
}

function toggleButton( button, value, buttonscaption, buttonhcaption ) {
  return button.innerHTML = ( !(value) || (value == 'none') ) ?
                            buttonscaption : buttonhcaption;
}


// load display status from cookie 
function loadDisplayCookies() {
  var cookies = document.cookie.split('; ');
  for (var i=cookies.length - 1; i>= 0; i--) {
    if ( cookies[i].match( /^display_/ ) ) {
      var sline = cookies[i].split( "=" );
      show( sline[0].replace( /^display_/, "" ), sline[1] );
    }
    if ( cookies[i].match( /^button_/ ) ) {
      var sline = cookies[i].split( "=" );
      var blist = getElements( sline[0].replace( /^button_/, "" ) );
      if ( blist.length && sline[1]) {
        blist[0].innerHTML = sline[1];
      }
    }    
  }
  return 0; 
}
/*
    This file is part of wili-cms 

    wili-cms - wiki like content-managament system (http://wili-cms.sourceforge.net)
    Copyright (C) 2004-2007 Patrick Michaelis <patrick AT bb-goettingen DOT de> 

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

// used by select links
function GoURL (select) {
  var val = select.options[select.options.selectedIndex].value;
  if (val == "") {
    select.form.reset();
  } else {
     top.location.href = val;
  }
}


// include a HTML page from URL
// returns the content of the page

function readURL( url ) {
 if ('undefined' == typeof(url)) return false;
 var p,rnd;

 if (document.all){
   // For IE, create an ActiveX Object instance 
   p = new ActiveXObject("Microsoft.XMLHTTP");
 } 
 else {
   // For mozilla, create an instance of XMLHttpRequest.
   p = new XMLHttpRequest();
 }

 // Prevent browsers from caching the included page
 // by appending a random  number
 rnd = Math.random().toString().substring(2);
 url = url.indexOf('?')>-1 ? url+'&rnd='+rnd : url+'?rnd='+rnd;

 // Open the url and write out the response
 p.open("GET",url,false);
 p.send(null);
 return p.responseText;
}