var fDesc=new Array();
fDesc[0] = "Filter Shape looks at how the shape of the two-dimensional cross-section of a filter affects the results generated when it is used to scale an image. Users are able to sketch and resize their own filters or use previously generated filters and see how each filter affects the scaling of a subregion of an image.";

function tShowHide(id, show)
{
	var s = document.getElementById("desc");

	if ((s.innerHTML.length<=212 || show==1) && show!=2)
	{
		s.innerHTML = fDesc[id];
		if (document.getElementById('m1'))
			document.getElementById('m1').style.display='none';
		if (document.getElementById('m2'))
			document.getElementById('m2').style.display='none';
		if (document.getElementById('more_txt'))
			document.getElementById('more_txt').style.display='inline';
	}
	else
	{
		s.innerHTML = '';
	}
}