// JavaScript Document

function ecrire(message, divId)
{
	var div=document.getElementById(divId)
	div.innerHTML=message;
}


function display(divId, divId2)
{
	div=document.getElementById(divId);
	div2=document.getElementById(divId2);
	
	div.style.display='block';
	div2.style.display='none';
}

function changeClass(id,id2)
{
	elem=document.getElementById(id);
	elem.className='mainCurrent3';
	
	elem2=document.getElementById(id2);
	elem2.className='';	
}

function sousMenu(txt1, lien1, txt2, lien2, classe)
{
	var exist= document.getElementById('ssMenu1');
	
	if(exist)
	{document.body.removeChild(exist); return false;}
	
	var cont=document.createElement('DIV');
	cont.id='ssMenu1';
	cont.className=classe;
	
	var liste=document.createElement('UL');
	liste.id='mainnav2';
	
	var onglet1=document.createElement('LI');
	onglet1.innerHTML='<a href="'+lien1+'">'+txt1+'</a>';
	
	var onglet2=document.createElement('LI');
	onglet2.innerHTML='<a href="'+lien2+'">'+txt2+'</a>';
	
	liste.appendChild(onglet1);
	liste.appendChild(onglet2);
	
	cont.appendChild(liste);
	
	document.body.appendChild(cont);
	
	document.body.onclick = function recupEtat()
	{
		document.body.removeChild(cont);
	}
	
	/*var myf = document.getElementById("myIframe");
	myf = myf.contentWindow.document || myf.contentDocument;
	
	myf.body.onclick  = function suppr()
	{
		document.body.removeChild(cont);
	}*/
}

//*******************************//

function valider_search_f(formulaire)
{
	 //var mot_cle;
	 if(formulaire.elements['mot_cle'].value=="Mot clé") 
	 { var mot_cle="";}
	 else
	 var mot_cle=formulaire.elements['mot_cle'].value;
	 
	 if ( formulaire.elements['type_search'].value == 'groupe' )
		{ var action=" <?=WEB_PATH;?>/groups.php?action=search&searchString="+mot_cle;}
	 
	  if ( formulaire.elements['type_search'].value == 'sujet' )
		 { var action=" <?=WEB_PATH;?>/search_group.php?go=1&key="+mot_cle;}
	
	  if ( formulaire.elements['type_search'].value == 'personne' )
		 {	var action=" <?=WEB_PATH;?>/people.php?name="+mot_cle; }
	 //alert('action='+action);
	 return action;
}
	
//******** Smooth scrolling ***********//

var ss = 
{
  fixAllLinks: function() {
    // Get a list of all links in the page
    var allLinks = document.getElementsByTagName('a');
    // Walk through the list
    for (var i=0;i<allLinks.length;i++) {
      var lnk = allLinks[i];
      if ((lnk.href && lnk.href.indexOf('#') != -1) && 
          ( (lnk.pathname == location.pathname) ||
	    ('/'+lnk.pathname == location.pathname) ) && 
          (lnk.search == location.search)) {
        // If the link is internal to the page (begins in #)
        // then attach the smoothScroll function as an onclick
        // event handler
        ss.addEvent(lnk,'click',ss.smoothScroll);
      }
    }
  },

  smoothScroll: function(e) {
    // This is an event handler; get the clicked on element,
    // in a cross-browser fashion
    if (window.event) {
      target = window.event.srcElement;
    } else if (e) {
      target = e.target;
    } else return;

    // Make sure that the target is an element, not a text node
    // within an element
    if (target.nodeName.toLowerCase() != 'a') {
      target = target.parentNode;
    }
  
    // Paranoia; check this is an A tag
    if (target.nodeName.toLowerCase() != 'a') return;
  
    // Find the <a name> tag corresponding to this href
    // First strip off the hash (first character)
    anchor = target.hash.substr(1);
    // Now loop all A tags until we find one with that name
    var allLinks = document.getElementsByTagName('a');
    var destinationLink = null;
    for (var i=0;i<allLinks.length;i++) {
      var lnk = allLinks[i];
      if (lnk.name && (lnk.name == anchor)) {
        destinationLink = lnk;
        break;
      }
    }
  
    // If we didn't find a destination, give up and let the browser do
    // its thing
    if (!destinationLink) return true;
  
    // Find the destination's position
    var destx = destinationLink.offsetLeft; 
    var desty = destinationLink.offsetTop;
    var thisNode = destinationLink;
    while (thisNode.offsetParent && 
          (thisNode.offsetParent != document.body)) {
      thisNode = thisNode.offsetParent;
      destx += thisNode.offsetLeft;
      desty += thisNode.offsetTop;
    }
  
    // Stop any current scrolling
    clearInterval(ss.INTERVAL);
  
    cypos = ss.getCurrentYPos();
  
    ss_stepsize = parseInt((desty-cypos)/ss.STEPS);
    ss.INTERVAL =
setInterval('ss.scrollWindow('+ss_stepsize+','+desty+',"'+anchor+'")',100);
  
    // And stop the actual click happening
    if (window.event) {
      window.event.cancelBubble = true;
      window.event.returnValue = false;
    }
    if (e && e.preventDefault && e.stopPropagation) {
      e.preventDefault();
      e.stopPropagation();
    }
  },

  scrollWindow: function(scramount,dest,anchor) {
    wascypos = ss.getCurrentYPos();
    isAbove = (wascypos < dest);
    window.scrollTo(0,wascypos + scramount);
    iscypos = ss.getCurrentYPos();
    isAboveNow = (iscypos < dest);
    if ((isAbove != isAboveNow) || (wascypos == iscypos)) {
      // if we've just scrolled past the destination, or
      // we haven't moved from the last scroll (i.e., we're at the
      // bottom of the page) then scroll exactly to the link
      window.scrollTo(0,dest);
      // cancel the repeating timer
      clearInterval(ss.INTERVAL);
      // and jump to the link directly so the URL's right
      location.hash = anchor;
    }
  },

  getCurrentYPos: function() {
    if (document.body && document.body.scrollTop)
      return document.body.scrollTop;
    if (document.documentElement && document.documentElement.scrollTop)
      return document.documentElement.scrollTop;
    if (window.pageYOffset)
      return window.pageYOffset;
    return 0;
  },

  addEvent: function(elm, evType, fn, useCapture) {
    // addEvent and removeEvent
    // cross-browser event handling for IE5+,  NS6 and Mozilla
    // By Scott Andrew
    if (elm.addEventListener){
      elm.addEventListener(evType, fn, useCapture);
      return true;
    } else if (elm.attachEvent){
      var r = elm.attachEvent("on"+evType, fn);
      return r;
    } else {
      alert("Handler could not be removed");
    }
  } 
}

ss.STEPS = 25;

ss.addEvent(window,"load",ss.fixAllLinks);