Movement troubles

$movementSpeed = 1; // m/s

function setSpeed(%speed)
{
   if(%speed)
      $movementSpeed = %speed;
}

function moveleft(%val)
{
   $mvLeftAction = %val * $movementSpeed;
}

function moveright(%val)
{
   $mvRightAction = %val * $movementSpeed;
}

function moveforward(%val)
{
   $mvForwardAction = %val * $movementSpeed;
}

function movebackward(%val)
{
   $mvBackwardAction = %val * $movementSpeed;
}

function moveup(%val)
{
   $mvUpAction = %val * $movementSpeed;
}

function movedown(%val)
{
   $mvDownAction = %val * $movementSpeed;
}

[b]function turnLeft( %val )
{
   $mvYawRightSpeed = %val ? $Pref::Input::KeyboardTurnSpeed : 0;
}

function turnRight( %val )
{
   $mvYawLeftSpeed = %val ? $Pref::Input::KeyboardTurnSpeed : 0;
}
[/b]
function panUp( %val )
{
   $mvPitchDownSpeed = %val ? $Pref::Input::KeyboardTurnSpeed : 0;
}

function panDown( %val )
{
   $mvPitchUpSpeed = %val ? $Pref::Input::KeyboardTurnSpeed : 0;
}

function getMouseAdjustAmount(%val)
{
   // based on a default camera fov of 90'
   return(%val * ($cameraFov / 90) * 0.01);
}

function yaw(%val)
{
   $mvYaw += getMouseAdjustAmount(%val);
}

function pitch(%val)
{
   $mvPitch += getMouseAdjustAmount(%val);
}

function jump(%val)
{
   $mvTriggerCount2++;
}

function mouseTrigger(%val)
{
   $mvTriggerCount0++;
}

moveMap.bind( keyboard, a, moveleft );
moveMap.bind( keyboard, d, moveright );
moveMap.bind( keyboard, w, moveforward );
moveMap.bind( keyboard, s, movebackward );
moveMap.bind( keyboard, space, jump );

moveMap.bind( mouse, xaxis, yaw );
moveMap.bind( mouse, yaxis, pitch );
moveMap.bind( mouse, button0, mouseTrigger );