function knp (wegnummer)
{
/* 
window.open('http://www.highway-intersections.net/nl/'+wegnummer,'knp',',toolbar=yes,directories=yes,location=yes,menu=yes,scrollbars=yes,resizable=yes')
*/
window.open('knp/k_'+wegnummer+'.gif','knp',',width=550,height=550,toolbar=yes,directories=yes,location=yes,menu=yes,scrollbars=yes,resizable=yes')
}