Get image dimensions as float?

This is a bit backward: 

var imageHeight = app.activeDocument.height.value;
if (imageHeight == 224)
{
  // do stuff
}

Didn't work for once - I assumed that image dimensions were ints, but there we go... 

Casting it to an int worked: 

if (parseInt(imageHeight) == 224)
{
  // do stuff
}

Case closed.

But! Just out on curiousity, how do you get the float value of  app.activeDocument.height??? - it always seems to report it as in int. Assuming that's what's going wrong.

I tried casting it as float and multiplying it by 1,000,000.