:?:<script type="text/javascript" language="JavaScript">
</script>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
function checkCheckBox(f){
if (f.agree.checked == false )
{
alert('Не сте приели!');
return false;
}else
return true;
}
</script>
</HEAD>
<BODY>
<form action="yourpage.html" method="POST" onsubmit="return checkCheckBox(this)">
Приемам: <input type="checkbox" value="0" name="agree">
<input type="submit" value="Продължи">
</form>
if(isset($_POST['submit']){
if(isset($_POST['checkbox']) && $_POST['checkbox'] == 1){
//Това е ако примерно инпътите ти са така
//<input type="checkbox" name="checkbox" value="1">
//<input type="checkbox" name="checkbox" value="2">
//и така на татък
}
}
<?php
if (isset($_POST['submit']) && $_POST['check']=="on"){
echo "Воала";
} else {
?>
<form method="post" action="">
<input type="checkbox" name="check" /><br />
<input type="submit" name="submit" />
</form>
<?php
}
?>