function multiplikator(){
    document.application_form.total.value = parseFloat(document.application_form.front.value.replace(/,/,".")) * parseFloat(document.application_form.depth.value.replace(/,/,"."));
}
function openWindow(URL) {
    var locX=((screen.width-520)/2);
    var locY=((screen.height-400)/2)+30;
    popUpWin = window.open(URL,'x','width=520,height=400,left='+locX+',top='+locY+',fullscreen=no,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes');
}