function winopen(){
  window.open("http://matmin.kevius.com/scalc/scalc.htm", "newWindow", "toolbar=no,location=0,directories=no,status=no, menubar=no,scrollbars=no,resizable=no,copyhistory=no,width=180,height=310,top=10,left=100")
}
function ujbild(){
   k2.src='http://matmin.kevius.com/scalc/calc2.gif';return true;
}

function regibild(){
	k2.src='http://matmin.kevius.com/scalc/calc.gif';return true;
	}

document.write("<img src='http://matmin.kevius.com/scalc/calc.gif' alt='klicka' width='32' height='32' border='0' onclick='winopen()' name='k2' onmouseover='ujbild()' onmouseout='regibild()' style='margin-top: 1pt;'>")