function Is() {
var agent = navigator.userAgent.toLowerCase();
this.major = parseInt(navigator.appVersion);
this.minor = parseFloat(navigator.appVersion);
this.ns = ((agent.indexOf('mozilla') != -1) &&
(agent.indexOf('spoofer') == -1) && (agent.indexOf('compatible') == -1) && (agent.indexOf('opera') == -1) && (agent.indexOf('webtv') == -1));
this.ns2 = (this.ns && (this.major == 2));
this.ns3 = (this.ns && (this.major == 3));
this.ns4 = (this.ns && (this.major == 4));
this.ns6 = (this.ns && (this.major >= 5));
this.ie = (agent.indexOf("msie") != -1);
this.ie3 = (this.ie && (this.major < 4));
this.ie4 = (this.ie && (this.major == 4) &&
(agent.indexOf("msie 5.0")   == -1));
this.ie5 = (this.ie && (this.major == 4) &&
(agent.indexOf("msie 5.0") != -1));
this.ieX = (this.ie && !this.ie3 && !this.ie4);
}
var is = new Is();
function layerObject(id,left,top,visibility) {
if (is.ie5||is.ns6){
this.obj = document.getElementById(id).style;
this.obj.left = left;
this.obj.top = top;
this.obj.visibility = visibility;
return this.obj;
}
else if(is.ie4) {
this.obj = document.all[id].style;
this.obj.left = left;
this.obj.top = top;
this.obj.visibility = visibility;
return this.obj;
}
else if(is.ns4) {
this.obj = document.layers[id];
this.obj.left = left;
this.obj.top = top;
this.obj.visibility = visibility;
return this.obj;
   }  
}


function findSize(delta) {
if(is.ns4 ||is.ns6) {
  available_width=innerWidth - delta;
  available_height=innerHeight;

  } else if(is.ie4 || is.ie5) {
      available_width=document.body.clientWidth - delta;
      available_height=document.body.clientHeight;
   }

width_pic1 = available_width;
         
 
} /* findSize */


function findSizeReAusl(delta) {
/* über delta hinaus wird der restliche platz für die drei bilder pic1-pic3 berechnet (gem. rahmen_re_ausl) 
 */
if(is.ns4 ||is.ns6) {
available_width=innerWidth - delta;
available_height=innerHeight;

} else if(is.ie4 || is.ie5) {
available_width=document.body.clientWidth - delta;
available_height=document.body.clientHeight;
   }

/* initialisierung der korrekten grüössen gemäss design */
width_pic1=82;
width_pic2=80;
width_pic3=0;

/* nun anpassen an fenstergrösse */
if (available_width < width_pic1) {
width_pic1 = available_width - 2;
width_pic2 = 0;
} else if (available_width < (width_pic1 + width_pic2)) {
             width_pic2=available_width - width_pic1 - 1;
         } else {
               width_pic3=available_width - width_pic1 - width_pic2;
                }
       

} /* FindSizeReAusl */


function winResize() {
if(is.ns4 ||is.ns6||is.ie4||is.ie5) {
history.go(0);
   }
}