function onlyTelefon(e){
 var key = (typeof e.charCode == 'undefined' ? e.keyCode : e.charCode);
 if (e.ctrlKey || e.altKey || key < 32)return true;
	key = String.fromCharCode(key);
 //return /[\d-+\.]/.test(key);
	return /[\d\-+. ]/.test(key);
}

function retText(str, id){
	if(id.value == str){
	 id.value = '';	
	}
}

function showDiv(id){
 var obj = document.getElementById('mn_'+id);
 for(i = 1; i < 4; i++){
  if(i == id){}
	else{
   var obj2 = document.getElementById('mn_'+i);
	 obj2.className = 'hd';
	 document.getElementById('man_'+i).className = 't1';
	}
 }
 obj.className = 'sh';
 document.getElementById('man_'+id).className = 't2'; 
}