function checkForm() {

if (document.getElementById("first_name").value == ""){
hideAllErrors();
document.getElementById("fnameError").style.display = "inline";
document.getElementById("first_name").select();
document.getElementById("first_name").focus();
return false;
}
else
if (document.getElementById("email").value == "") {
hideAllErrors();
document.getElementById("emailError").style.display = "inline";
document.getElementById("email").select();
document.getElementById("email").focus();
return false;
}
else
if (document.getElementById("password").value == "") {
hideAllErrors();
document.getElementById("passwordError").style.display = "inline";
document.getElementById("password").select();
document.getElementById("password").focus();
return false;
}
else
if (document.getElementById("conf_password").value == "") {
hideAllErrors();
document.getElementById("confError").style.display = "inline";
document.getElementById("conf_password").select();
document.getElementById("conf_password").focus();
return false;
}
else
if(document.getElementById("conf_password").value !== document.getElementById("password").value)
{
hideAllErrors();
document.getElementById("passError").style.display = "inline";
document.getElementById("conf_password").select();
document.getElementById("conf_password").focus();
return false;
}

return true;
}

function hideAllErrors() {
document.getElementById("fnameError").style.display = "none"
document.getElementById("emailError").style.display = "none"
document.getElementById("passwordError").style.display = "none"
document.getElementById("confError").style.display = "none"
}