function checkForm()
{
re = /\W/g;
var doc = document.forma;

var password = doc.password.value;
var password_special_chars = password.match(re);

var err = 0;
	if(password_special_chars){
		alert('The characters '+password_special_chars+' are not allowed in your password');
		err = 1;
		doc.password.focus();
	} else if(doc.password.value == ''){
		alert('Please enter a password');
		err = 1;
		doc.password.focus();
	} else if(doc.password.value != doc.password1.value){
		alert('Please retype the password');
		err = 1;
		doc.password1.focus();
	} else if(doc.email.value == ''){
		alert('Please enter your e-mail address');
		err = 1;
		doc.email.focus();
	} else if(!emailCheck(doc.email.value)){
		alert('The e-mail address you\'ve entered is not correct');
		err = 1;
		doc.email.focus();
	} else if(doc.name.value == ''){
		alert('Please enter your name');
		err = 1;
		doc.name.focus();
	} else if(doc.address.value == ''){
		alert('Please enter your address');
		err = 1;
		doc.address.focus();
	} else if(doc.town.value == ''){
		alert('Please enter your town');
		err = 1;
		doc.town.focus();
	} else if(doc.phone1.value == ''){
		alert('Please enter your phone number');
		err = 1;
		doc.phone1.focus();
	} else if(doc.phone2.value == ''){
		alert('Please enter your phone number');
		err = 1;
		doc.phone2.focus();
	} else if(!doc.agree.checked){
		alert('You have to agree our Privacy Policy and Terms of Service to continue');
		err = 1;
		doc.agree.focus();
	}

if(err==0){return true;}else{return false;}
}

function emailCheck (emailStr) {
var emailPat=/^(.+)@(.+)$/
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
var validChars="\[^\\s" + specialChars + "\]"
var quotedUser="(\"[^\"]*\")"
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
var atom=validChars + '+'
var word="(" + atom + "|" + quotedUser + ")"
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
var matchArray=emailStr.match(emailPat)
if (matchArray==null) {
//	alert("Email address seems incorrect (check @ and .'s)")
	return false
}
var user=matchArray[1]
var domain=matchArray[2]


if (user.match(userPat)==null) {
    // user is not valid
//    alert("The username doesn't seem to be valid.")
    return false
}

/* if the e-mail address is at an IP address (as opposed to a symbolic
   host name) make sure the IP address is valid. */
var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
    // this is an IP address
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
//	        alert("Destination IP address is invalid!")
		return false
	    }
    }
    return true
}

// Domain is symbolic name
var domainArray=domain.match(domainPat)
if (domainArray==null) {
//	alert("The domain name doesn't seem to be valid.")
    return false
}

var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
   // the address must end in a two letter or three letter word.
  // alert("The address must end in a three-letter domain, or two letter country.")
   return false
}

// Make sure there's a host name preceding the domain.
if (len<2) {
   var errStr="This address is missing a hostname!"
//   alert(errStr)
   return false
}

// If we've gotten this far, everything's valid!
return true;
}