//--------------------------------------------------------------
function check_form_write_message() {
	if (document.write_message.name.value=="") { alert("Please enter your name"); return(false); }
	if (document.write_message.contacts.value=="") { alert("Please enter your email"); return(false); }
	var r = /^[\w\.\d-_]+@[\w\.\d-_]+\.\w{2,4}$/i;
	if (!r.test(document.write_message.contacts.value)) { alert("Please enter a valid email address"); return(false); }
	if (document.write_message.message.value=="") { alert("Please enter your message"); return(false); }
	return(true);
}
//--------------------------------------------------------------
function check_form_registration() {
	if (document.form_registration.email.value=="") { alert("Please enter your email"); return(false); }
	var r = /^[\w\.\d-_]+@[\w\.\d-_]+\.\w{2,4}$/i;
	if (!r.test(document.form_registration.email.value)) { alert("Please enter a valid email address"); return(false); }
	if (document.form_registration.password.value.length<6) { alert("Password is too short"); return(false); }
	if (document.form_registration.password.value!=document.form_registration.password2.value) { alert("Password and repeat do not match"); return(false); }
	if (!document.form_registration.sign.checked) { alert("To register you must agree to our terms and conditions"); return(false); }
	if (!document.form_registration.sign2.checked) { alert("To register you must agree to our terms and conditions"); return(false); }
	return(true);
}
//--------------------------------------------------------------
function check_form_restore_password() {
	if (document.restore_password.email.value=="") { alert("Please enter your email"); return(false); }
	var r = /^[\w\.\d-_]+@[\w\.\d-_]+\.\w{2,4}$/i;
	if (!r.test(document.restore_password.email.value)) { alert("Please enter a valid email address"); return(false); }
	if (document.restore_password.password.value.length<6) { alert("Password is too short"); return(false); }
	return(true);
}
//--------------------------------------------------------------
function check_form_login() {
	if (document.form_login.email.value=="") { alert("Please enter your email"); return(false); }
	var r = /^[\w\.\d-_]+@[\w\.\d-_]+\.\w{2,4}$/i;
	if (!r.test(document.form_login.email.value)) { alert("Please enter a valid email address"); return(false); }
	if (document.form_login.password.value=="") { alert("Please enter a password"); return(false); }
	return(true);
}
//--------------------------------------------------------------
function fill_form_registration(email,password,password2,sign,sign2) {
	document.form_registration.email.value=email;
	document.form_registration.password.value=password;
	document.form_registration.password2.value=password2;
	if (sign) document.form_registration.sign.checked=true;
	if (sign2) document.form_registration.sign2.checked=true;
}
//--------------------------------------------------------------
function fill_form_restore_password(email,password) {
	document.restore_password.email.value=email;
	document.restore_password.password.value=password;
}
//--------------------------------------------------------------
function fill_form_login(email,password) {
	document.form_login.email.value=email;
	document.form_login.password.value=password;
}
//--------------------------------------------------------------
function my_sign(n) {
	if (n==1) document.form_registration.sign.checked=true;
	if (n==2) document.form_registration.sign2.checked=true;
}
//--------------------------------------------------------------