<form name= "bb" methode=post> deb : fin : </form> <script type="text/javascript"> function check() {var totalp=0; for(var iparseInt(bb.deb.value,10) ;i<parseInt(bb.fin.value,10);i++) {totalp=totalp+i;} document.write(totalp); } </script>
<script type="text/javascript">
<script>