function validate_form(thisform) {



with (thisform) {

var checkBool = new Boolean(0);

//Check Name
if (name.value == "" || name.value == null) {
document.getElementById("name").style.background='url(textboxerror.png) no-repeat left top';
checkBool = 0;
} else {
document.getElementById("name").style.background='url(textbox.png) no-repeat left top';
checkBool = 1;
}

//Check Email
if (email.value == "" || email.value == null) {
document.getElementById("email").style.background='url(textboxerror.png) no-repeat left top';
checkBool = 0;
} else {
document.getElementById("email").style.background='url(textbox.png) no-repeat left top';
checkBool = 1;
}

//Check Postcode
if (postcode.value == "" || postcode.value == null) {
document.getElementById("postcode").style.background='url(textboxerror.png) no-repeat left top';
checkBool = 0;
} else {
document.getElementById("postcode").style.background='url(textbox.png) no-repeat left top';
checkBool = 1;
}

if (checkBool == 0) { return false; } else {
document.getElementById('forminputs').style.visibility = 'hidden';
document.getElementById("info").innerHTML = '<div style="font-size: 18pt">Thankyou!<br><br></div>Thankyou for downloading CCTV and joining our mailing list. You should receive a welcome email shortly. Also don\'t forget to check your downloads folder for CCTV!';
return true; 
}

}
}