var view_width = '928'; 
var view_heigth = '598';

	function _Get_Move_Left(){
      var _L;
          if ((window.innerWidth) && (window.innerWidth >= view_width)) {
               _L =  Math.round((window.innerWidth - view_width) / 2);
           return _L;
          }
          if ( (document.body) && (document.body.offsetWidth >= view_width) ){
               _L = Math.round((document.body.offsetWidth - view_width) /2);
          return _L;
          }
    return 0;
   	}
	
	function _Get_Move_Top() {
          if ((window.innerHeight)&& (window.innerHeight >= view_heigth)) {
               _T = Math.round((window.innerHeight - view_heigth) / 2);
         return _T;
         }
         if ((document.body)&& (document.body.offsetHeight >= view_heigth)) {
               _T = Math.round((document.body.offsetHeight - view_heigth) / 2);
         return _T;
         }
    return 0;
    }
    
     function _Set_Cookie (_CokName, _CokDays, _Content) {
		var _Ablauf = new Date();
		var _Zeit = _Ablauf.getTime() + (_CokDays * 24 * 60 * 60 * 1000);
		_Ablauf.setTime(_Zeit);
		_Ablauf = _Ablauf.toGMTString();
		document.cookie = _CokName +"=" + _Content + ";expires=" + _Ablauf;
     }
     
    function center_it(){
          var _T = _Get_Move_Top();
          var _L = _Get_Move_Left();
          document.getElementById('main_size_frame').style.top = _T + 'px'; 
          document.getElementById('main_size_frame').style.left = _L + 'px'; 
          var _Class = 'left:'+ _L+'px#top:'+_T+'px';
     _Set_Cookie('position-class-cookie',5,_Class); 
     }