Este seria el inicio del FORM:
Código:
<form id="añadir" name="añadir" action="insertar.php" method="post">
Estos serian los botones (dentro del FORM):
Código:
<td ><input type="submit" value="Añadir entrada" onclick="comprobar(document.forms[0])"/></td>
<td colspan="60"><input type="button" value="Limpiar datos" onclick="limpiar(document.forms[0])"/></td>
Y este el codigo JAVASCRIPT
:
Código:
<script type="text/javascript">
function limpiar(form) {
form.caja0.value="";
form.caja1.value="";
form.caja2.value="";
form.caja3.value="";
form.caja4.value="";
form.caja5.value="0";//select, esto hay que tratar de otra manera
form.caja6.value="0";//select
form.caja7.value="";
form.caja8.value="";
form.caja9.value="";
}
function comprobar(form){
if((form.caja1.value=="")||(form.caja7.value=="")||(form.caja8.value=="")||(form.caja9.value=="")||
(form.caja5.value=="0")||(form.caja6.value=="0")){
alert("Debes rellenar los campos obligatorios!");
}
}
</script>