/*
//We wrap all the code in an object so that it doesn't interfere with any other code
var scroller = {
  init:   function() {
    //collect the variables
    scroller.docH = document.getElementById("content").offsetHeight;
    scroller.contH = document.getElementById("container").offsetHeight;
    scroller.scrollAreaH = document.getElementById("scrollArea").offsetHeight;
      
    //calculate height of scroller and resize the scroller div
    //(however, we make sure that it isn't to small for long pages)
    scroller.scrollH = (scroller.contH * scroller.scrollAreaH) / scroller.docH;
    //if(scroller.scrollH < 15) scroller.scrollH = 15;
    document.getElementById("scroller").style.height = Math.round(scroller.scrollH) + "px";
    
    //what is the effective scroll distance once the scoller's height has been taken into account
    scroller.scrollDist = Math.round(scroller.scrollAreaH-scroller.scrollH);
    
    //make the scroller div draggable
    Drag.init(document.getElementById("scroller"),null,0,0,-1,scroller.scrollDist);
    
    //add ondrag function
    document.getElementById("scroller").onDrag = function (x,y) {
      var scrollY = parseInt(document.getElementById("scroller").style.top);
      var docY = 0 - (scrollY * (scroller.docH - scroller.contH) / scroller.scrollDist);
      document.getElementById("content").style.top = docY + "px";
    }
  }
}

*/

function savePosition(categorie) {
	setCookie("SB_categorie", categorie, null);
	var scrollPosition=document.getElementById("container").scrollTop;
	setCookie("SB_position", scrollPosition, null);
}

function loadPosition(categorie) {
	if (categorie==getCookie("SB_categorie")) {
		document.getElementById("container").scrollTop=getCookie("SB_position");
	} else {
		document.getElementById("container").scrollTop=0;
	};
}

function setCookie(name, value, expire) {
          document.cookie = name + "=" + escape(value)
          + ((expire == null) ? "" : ("; expires=" + expire.toGMTString()))
}

function getCookie(Name) {
          var search = Name + "="
          if (document.cookie.length > 0) { // if there are any cookies
                    offset = document.cookie.indexOf(search) 
                    if (offset != -1) { // if cookie exists 
                              offset += search.length 
                              // set index of beginning of value
                              end = document.cookie.indexOf(";", offset) 
                              // set index of end of cookie value
                              if (end == -1) 
                                        end = document.cookie.length
                              return unescape(document.cookie.substring(offset, end))
                    } 
          }
}