 <script language="JavaScript">
function check()
{
var checked=true;
var pattern=/.*\@.*\..*/;
if (checked)
{
if ((pattern.test(document.sendform.email.value))==false)
{
document.sendform.email.focus();
document.sendform.email.select();
alert ("Please enter a valid e-mail address.");
checked=false;
}
}
if (checked)
{
if (document.sendform.email.value=="")
{
document.sendform.email.focus();
document.sendform.email.select();
alert ("Please fill in all required fields.");
checked=false;
}
}
if (checked)
{
document.sendform.method="POST";
document.sendform.action="http://www.alpin-guide.com";
document.sendform.submit;
}
return checked;
} 
</script>