jQuery(document).ready(function(){
    var measure = jQuery('li#liArrow').outerWidth();
    if(measure > '120'){
      var mwidth = measure;
      jQuery('<img id="nav_arrow" src="fileadmin/template/img/nav_arrow_two.gif" width="'+mwidth+'" height="25" style="margin-left:-5px;" />').insertAfter('span.spanAct');      
    }else{
      var mwidth = measure -1;
      jQuery('<img id="nav_arrow" src="fileadmin/template/img/nav_arrow.gif" width="'+mwidth+'" height="25" style="margin-left:-5px;" />').insertAfter('span.spanAct');
    }
});