function OnStart()
{
lay = app.CreateLayout("linear", "VCenter, FillXY")
txt = app.AddText(lay, "waiting\n",-1,-1,"multiline")
img = app.AddImage( lay,null,0.8, 0.8 )
img.SetBackColor( "#cc22cc" )
img.SetOnTouchDown(img_OnTouch)
app.AddLayout(lay)
}
function img_OnTouch( ev )
{
var msg = ev.X + "\n" + ev.Y
txt.SetText( msg )