var making_a_difference={open_popups:[],$:function(id){return document.getElementById(id);},close_open_popups:function(){for(var popup in this.open_popups){if(this.open_popups[popup]&&this.$(popup+"-content")){this.$(popup+"-content").style.display='none';this.$(popup+"-list").className="";this.open_popups[popup]=false;}}},open_popup:function(popup){this.$(popup+"-content").style.display='block';this.$(popup+"-list").className="active";this.open_popups[popup]=true;return false;},add_popup:function(popup){this.$(popup).onclick=function(){making_a_difference.close_open_popups();return making_a_difference.open_popup(this.id);}
this.$(popup).onkeyup=function(){making_a_difference.close_open_popups();return making_a_difference.open_popup(this.id);}},add_lightwindow:function(id,params){this.$(id).className="lightwindow";this.$(id).setAttribute("params",params);}}