//Menu Fermentis
//Auteur : Hervé FRACKOWIAK

//Au chargement de la page
$(document).ready(function(){
 //Definition des survols
 
     
 mousemenu("about");
 mousemenu("our_skills");
 mousemenu("research");
 
});

function mousemenu(id)
{
  $("#"+id).mouseover(function(){
        //On recache tout
        $("div[id^='menu_']").hide();
        
        $("body").prepend('<div class="calque_sortie"><img src="../images/00-Commun/1ptrans.gif" border="0" alt=""/></div>');
        $(".calque_sortie img").css({width: $(window).width(), height: $(document).height()});
        
        //Calcul de la position
        var pos = $("#"+id+" img").findPos();	
    		var left = pos.x + 30;
    		var top = pos.y + 40;
    			
    		$("#menu_"+id).css("left", left).css("top", top);
        
        
        $("#menu_"+id).show();
        $(".calque_sortie img").mouseover(function(){
              $("div[id^='menu_']").hide();
              $(".calque_sortie").remove();
        });
      });
}

jQuery.fn.extend({
   findPos : function() {
       obj = $(this).get(0);
       var curleft = obj.offsetLeft || 0;
       var curtop = obj.offsetTop || 0;
       while (obj = obj.offsetParent) {
                curleft += obj.offsetLeft;
                curtop += obj.offsetTop;
       }
       return {x:curleft,y:curtop};
   }
});