menu1=new menu("img/k2.gif","img/k2_on.gif");
menu2=new menu("img/k4.gif","img/k4_on.gif");
menu3=new menu("img/k6.gif","img/k6_on.gif");
menu4=new menu("img/k8.gif","img/k8_on.gif");
menu5=new menu("img/k10.gif","img/k10_on.gif");
menu6=new menu("img/pr2.gif","img/pr2_on.gif");
menu7=new menu("img/pr3.gif","img/pr3_on.gif");

 function menu(norm_src,sel_src)
 {
   this.norm=new Image();
   this.sel=new Image();
  
   this.norm.src=norm_src;
   this.sel.src=sel_src; 
 

 }

 function on(ImageName)
 {
  
   NewSrc12=eval(ImageName+".sel.src");
   document.nyelv.src=NewSrc12;
   
 }

 function off(ImageName)
 {
   
   NewSrc22=eval(ImageName+".norm.src");
   document.nyelv.src=NewSrc22;
   
   
 }


 function on2(ImageName)
 {
   NewSrc11=eval(ImageName+".sel.src");
   document[ImageName].src=NewSrc11;
 
   
 }

 function off2(ImageName)
 {
   NewSrc21=eval(ImageName+".norm.src");
   document[ImageName].src=NewSrc21; 
 
   
 }

 function feldob(oldal)
 {
 ablak1=window.open(oldal,'','toolbar=no,location=no,directories=no,menubar=no,scrollbars=no,status=no,resizable=0,width=400,height=430');

   
 }