var t=null;

function show(id) {	
	killtimer();		
	div_section_vis = document.getElementById(id_vis);		
	node_list_a = div_section_vis.getElementsByTagName("a");
	subsection_vis_a = node_list_a[0];	
	subsection_vis_a.className="noactive";	
	node_list_div = div_section_vis.getElementsByTagName("div");
	div_subsection_vis = node_list_div[1];	
	div_subsection_vis.id="hid";	
	div_section = document.getElementById(id);	
	node_list_a = div_section.getElementsByTagName("a");
	subsection_a = node_list_a[0];	
	subsection_a.className="active";
	node_list_div = div_section.getElementsByTagName("div");
	div_subsection = node_list_div[1];	
	div_subsection.id="vis";
	id_vis=id; 
}

function hide(id) {	
	if(t!=null) killtimer();  
	div_section_vis = document.getElementById(id);	
	node_list_a = div_section_vis.getElementsByTagName("a");
	subsection_vis_a = node_list_a[0];	
	subsection_vis_a.className="noactive";	
	node_list_div = div_section_vis.getElementsByTagName("div");
	div_subsection_vis = node_list_div[1];	
	div_subsection_vis.id="hid";	
	div_section = document.getElementById(id_main_vis);	
	node_list_a = div_section.getElementsByTagName("a");
	subsection_a = node_list_a[0];	
	subsection_a.className="active";
	node_list_div = div_section.getElementsByTagName("div");
	div_subsection = node_list_div[1];	
	div_subsection.id="vis";
	id_vis=id_main_vis; 	
}

function killtimer(){
    if(t!=null) {
      clearTimeout(t);
      t=null;
    }
    return true;
}

function reset(id) {
	if (id==id_vis) {
    	killtimer();
    	t = setTimeout("hide('"+id+"')", 500);
	}
}