// Java-Script
function show(plz) {
	var show_elem = document.getElementById(plz);
	show_elem.style.display = 'block';	
}
function hide() {
	var hide_elem=document.getElementsByTagName("div");
 	for(var i=0;i<hide_elem.length;i++)if(hide_elem[i].id.indexOf("plz_")!=-1) {
 		hide_elem[i].style.display = 'none';
 	}
}
function toggle(plz) {
	var toggle_elem = document.getElementById(plz);
	if(toggle_elem.style.display == 'block') {
		hide();	
	}
	else if(toggle_elem.style.display != 'block'){
		hide();	
		show(plz);
	}
}