function show(field){
	document.getElementById(field).style.visibility = "visible";
}

function hide(field){
	document.getElementById(field).style.visibility = "hidden";
}

function l_over(id)
{
	document.getElementById(id).style.backgroundImage = "url(image/menu_over.png)";
}

function l_out(id)
{
	document.getElementById(id).style.backgroundImage = "";
}
//-->