Profile data validation

<input type="password" name="pass" id="id_1723">
<input type="submit" onclick="return doValidate();" value="Log In">
 
 
function doValidate() {
    console.log('Validating...');
    try {
        pw = document.getElementById('id_1723').value;
        console.log("Validating pw="+pw);
        if (pw == null || pw == "") {
            alert("Both fields must be filled out");
            return false;
        }
        return true;
    } catch(e) {
        return false;
    }
    return false;
}
 
 
 
</php>