var current_ap_id = "ap_1";
var current_text_id = "text_1";

function mouse_over(ap_id,text_id) {

	if (current_ap_id != ap_id) 
	{
		document.getElementById(ap_id).className = "aktiv";
		document.getElementById(current_ap_id).className = "neaktiv";
	}

	if (current_text_id != text_id) 
	{
		document.getElementById(text_id).style.visibility = "visible";
		document.getElementById(current_text_id).style.visibility = "hidden";
	}
	
	current_ap_id = ap_id;
	current_text_id = text_id;
}