function validatePassword(value){
    if(value){
        loginPasswordError.style.opacity = 0
        lp = true
        if(lu){
            loginDisabled(false)
        }
    } else {
        lp = false
        showError(loginPasswordError, Lang.queryJS('login.error.invalidValue'))
        loginDisabled(true)
    }
}
Validate that the password field is not empty.

@param {string} value The password value.