function wiki_help_hide()
{
	var bloc_hide = document.getElementById("hide_help");
	var bloc_view = document.getElementById("view_help");
	
	bloc_hide.setAttribute("class", "invisible");
	bloc_view.setAttribute("class", "visible");
}

function wiki_help_view()
{
	var bloc_hide = document.getElementById("hide_help");
	var bloc_view = document.getElementById("view_help");
	
	bloc_hide.setAttribute("class", "visible");
	bloc_view.setAttribute("class", "invisible");
}