/*** PTViewer built-in functions ***/

function PtvUp()
{
  document.ptviewer.panUp();
}
function PtvDown()
{
  document.ptviewer.panDown();
}
function PtvLeft()
{
  document.ptviewer.panLeft();
}
function PtvRight()
{
  document.ptviewer.panRight();
}
function PtvZoomIn()
{
  document.ptviewer.ZoomIn();
}
function PtvZoomOut()
{
  document.ptviewer.ZoomOut();
}


function DoAuto()
{
  document.ptviewer.startAutoPan( 0.5, 0.0, 1.0 );
}
function DoUp()
{
  document.ptviewer.startAutoPan( 0.0, 0.1, 1.0 );
}
function DoDown()
{
  document.ptviewer.startAutoPan( 0.0, -0.1, 1.0 );
}
function DoLeft()
{
  document.ptviewer.startAutoPan( -1, 0.0, 1.0 );
}
function DoRight()
{
  document.ptviewer.startAutoPan( 1, 0.0, 1.0 );
}
function DoLeftAuto()
{
  document.ptviewer.startAutoPan( -0.1, 0.0, 1.0 );
}
function DoRightAuto()
{
  document.ptviewer.startAutoPan( 0.1, 0.0, 1.0 );
}
function DoZoomIn()
{
  document.ptviewer.startAutoPan( 0.0, 0.0, 1.0/1.025 );
}
function DoZoomOut()
{
  document.ptviewer.startAutoPan( 0.0, 0.0, 1.025 );
}
function DoStop()
{
  document.ptviewer.stopAutoPan();
}

function DoReset()
{
}