function check() {

 if(document.Formular.Aktiviert.checked==true) {
 document.Formular.elements['senden'].disabled="";
 }
else {
 document.Formular.elements['senden'].disabled="disabled";
}
}

function check2() {

 if(document.mailform.AGB.checked==true) {
 document.Formular.elements['senden'].disabled="";
 }
else {
 document.Formular.elements['senden'].disabled="disabled";
}
}