function toggle(id){
	var obj = "";
	if(document.getElementById)
		obj = document.getElementById(id);
	else if(document.all)
		obj = document.all[id];
	else if(document.layers)
		obj = document.layers[id];
	else
		return 1;
	if (!obj){
		return 1;
	} else if (obj.style) {
		obj.style.display = ( obj.style.display != "none" ) ? "none" : "";
	} else { 
		obj.visibility = "show"; 
	}
}