versOk = (((navigator.appName == "Netscape")&& 
            (parseInt(navigator.appVersion) >= 3)) ||
        
           ((navigator.appName == "Microsoft Internet Explorer")&&
            (parseInt(navigator.appVersion)>=4))
          );




function rollOn(n)
{

		   light=eval(n+"2.src");
	       if (document [n].src == light) img=true;
		   else 
		   		{
				img=false;
           		document [n].src=light;
				}

}

function rollOff(n)
{

           if (!img)
		   	  {
			  dark=eval(n+"1.src");
              document [n].src=dark;
			  }
}


var okienko= null;

function okno(link,x,y)
{
if (!x) var x=660;
if (!y) var y=520;

	if (!okienko || okienko.closed)
		{
		okienko=window.open(link,'zoom','directories=no, location=no, menubar=no, scrollbars=no, status=yes, toolbar=no, resizable=1, left='+((screen.width)/2-300)+', top='+((screen.height)/2-300)+', width=' + x + ', height=' + y);
		}
	okienko.focus();
}



function Prnt(x){
 var i,strefa=document.getElementById('druk'),
  W=strefa.getElementsByTagName('div')
 for(i=0;i<W.length;i++)
  W[i].className=x.parentNode==W[i]?'print':'noprint'
 window.print()
}

function PrintTxt(){
 var i,strefa=document.getElementById('druk'),
  W=strefa.getElementsByTagName('div')
 for(i=0;i<W.length;i++)
  W[i].className='print'
 window.print()
}