b=0;
if (f!=null) alert("User name already in use!");

function validate(form) {
	if (b==1) {
		form.reset();
		form.com.focus();
		b=0;
	return false;
	} else {
		if (form.com.value.length<3) {alert("Please enter your company name!");return false;}
		s=form.email.value; p=s.indexOf(" "); k=s.indexOf("@"); K=s.indexOf("."); l=s.length;
		if ((l<5) || (p>=0) || (k<=0) || (k>=l-2) || (k>K) || (K<=0) || (K>=l-1)) {alert("Please enter your email address!");return false;}
		if (form.phone.value.length<6) {alert("Please enter your phone number!");return false;}
		if (form.user.value.length<3) {alert("Please enter your user name!");return false;}
		if (form.pass1.value.length<5) {alert("Your password must have at least 5 characters!");return false;}
		if (form.pass1.value!=form.pass2.value) {alert("Please retype your password!");return false;}
	}
}