var lasttext

function visible(object,state){
	var status
	if (state)
		status = "visible";
	else
		status = "hidden";

	if (document.layers)
			document.layers[object].visibility = status;
		else if (document.all){
					document.all[object].style.visibility = status;
		}else if (document.getElementById)
			document.getElementById(object).style.visibility = status;
}


// Funktion blendet Textebenen ein;
function Show(strName){

	if (lasttext != ""){
	Hide(lasttext)
	
	}
	visible(strName,true);
	lasttext = strName;
}


// Funktion blendet Textebenen aus
function Hide(strName){
	visible(strName,false);
}