Require fields?

[COLOR=black][FONT=Arial][FONT=Times New Roman][SIZE=3]I have a php “join the mailing list” form that I need to make the fields required, How can I do this??? I don’t know that much about php and am trying to grasp these basics so if anyone out there can help me out or point me in the right direction it would be greatly appreciated.[/SIZE][/FONT][/FONT][/COLOR]

Here is my page Code

<style type=“text/css”>
.style1 {
font-family: Arial, Helvetica, sans-serif;
font-size: 12px;
.style4 {color: #FFFFFF; font-weight: bold; }
<script 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*[n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers*.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*);
if (val) {; 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.
} else if (test!=‘R’) { num = parseFloat(val);
if (isNaN(val)) errors+=’- ‘+nm+’ must contain a number.
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+’.
} } } else if (test.charAt(0) == ‘R’) errors += ‘- ‘+nm+’ is required.
‘; }
} if (errors) alert(‘The following error(s) occurred:
document.MM_returnValue = (errors == ‘’);
<table width=“300” height=“400” border=“0” align=“center” cellpadding=“0” cellspacing=“0” id=“Table_01”>
<td colspan=“3”>
<img src=“images/join_mailing_list_01.jpg” width=“300” height=“16” alt=""></td>
<td rowspan=“2”>
<img src=“images/join_mailing_list_02.jpg” width=“14” height=“370” alt=""></td>
<img src=“images/join_mailing_list_03.jpg” width=“271” height=“97” alt=""></td>
<td rowspan=“2”>
<img src=“images/join_mailing_list_04.jpg” width=“15” height=“370” alt=""></td>
<td height=“273” valign=“middle” background=“images/join_mailing_list_05.jpg”><form id=“form1” name=“form1” method=“post” action="">
<p class=“style1”><span class=“style4”>Name:
</span><br />
<input name=“Name” type=“text” id=“Name” size=“32” />
<p class=“style1”><span class=“style4”>E-Mail:
</span><br />
<input name=“Email” type=“text” id=“Email” value="" size=“32” />
<p class=“style1”><span class=“style4”>Confirm E-Mail:</span><br />
<input name=“Confirm_Email” type=“text” id=“Confirm_Email” size=“32” />
<span class=“style1”>
<input name=“Submit” type=“submit” onclick="MM_validateForm(‘Name’,’’,‘R’,‘Email’,’’,‘RisEmail’,‘Confirm_Email’,’’,‘RisEmail’);return document.MM_returnValue" value=“Submit” />
</span> </p>
<td colspan=“3”>
<img src=“images/join_mailing_list_06.jpg” width=“300” height=“14” alt=""></td>
$Name = $_POST[‘Name’];
$Email = $_POST[‘Email’];
$Confirm_Email = $_POST[‘Confirm_Email’];

$link = mysql_connect( ‘’, ‘’, ‘’ ) or die( mysql_error() );
mysql_select_db( ‘’, $link ) or die( mysql_error() );

$result = mysql_query( “INSERT INTO Join_the_Mailing_List (Name, Email, Confirm_Email) VALUES ( ‘$Name’,’$Email’,’$Confirm_Email’)” ) or die( mysql_error() );