Dovrei controllare un form in JS in cui tutti i campi sono obbligatori, mi aiutate?
codice:<head> <script language="JavaScript" type="text/JavaScript"> <!-- function MM_findObj(n, d) { //v4.01 var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) { d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);} if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n]; for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); if(!x && d.getElementById) x=d.getElementById(n); return x; } function MM_validateForm() { //v4.0 var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments; for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]); if (val) { nm=val.name; if ((val=val.value)!="") { if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@'); if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n'; } else if (test!='R') { num = parseFloat(val); if (isNaN(val)) errors+='- '+nm+' must contain a number.\n'; if (test.indexOf('inRange') != -1) { p=test.indexOf(':'); min=test.substring(8,p); max=test.substring(p+1); if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n'; } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; } } if (errors) alert('The following error(s) occurred:\n'+errors); document.MM_returnValue = (errors == ''); } //--> </script> </head> <body> <form name="contatti" method="post" action="" onsubmit="MM_validateForm('email','','RisEmail');return document.MM_returnValue"> <table width="335" border="0" cellpadding="0" cellspacing="0"> <tr> <td class="txt">nome e cognome</td> <td class="txt">email</td> </tr> <tr> <td><input name="cognome" type="text" id="cognome"></td> <td><input name="email" type="text" id="email"></td> </tr> <tr> <td colspan="2">messaggio</td> </tr> <tr> <td colspan="2"><textarea name="messaggio" cols="64" rows="7" id="messaggio"></textarea></td> </tr> <tr> <td colspan="2">Come ci hai trovato?</td> </tr> <tr> <td colspan="2"><input name="motori" type="checkbox" id="motori" value="checkbox" /> Motori <input name="link" type="checkbox" id="link" value="checkbox" /> Link <input name="specificare" type="text" id="specificare" style=" value="specificare" size="30" /> Altro</td> </tr> <tr> <td colspan="2"></td> </tr> <tr> <td colspan="2"> [img]/images/reset.gif[/img] <input name="Invia" type="image" value="Invia" id="Invia" style="border : 0" src="/images/invia.gif" width="44" height="16" border="0" /> </p></td> </tr> </table> </form> </body> </html>

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