// JavaScript Document
var string_tick     =  "++ Am 24. und 31.12.2008 ist unser Büro nicht besetzt.++              ";
var strlength       =  string_tick.length;
var strpos_1        =  0;
var strpos_2        =  30;                  // change displayed substring here
var delay           =  100;                 // set interval-delay here
var pos1            =  0;
var pos2            =  0;

function ticktick () {

    // some vars
    //
    var str1, str2, pos3;  
    
    // reset when end of string
    //
    if (pos1 > strlength) {
        pos1 =  strpos_1;
        pos2 =  strpos_2;
    }
    
    // display a substring
    // after string end is reached continue with beginning of string
    //
    if (pos2 < strlength) {        
        str1 =  string_tick.substring(pos1, pos2);
        str2 =  "";    
    } else {    
        pos3 =  pos2 - strlength;
        str1 =  string_tick.substring(pos1);
        str2 =  string_tick.substring(0, pos3);    
    }
    
    // at startup add up pos2
    // then add up pos 1 and pos 2
    //
    if (pos2 < strpos_2) {
        pos2 ++;
    } else {
        pos1 ++;
        pos2 ++;    
    }      
    document.weihnachten.out.value =  str1 + str2;
}