var fDesc=new Array();
fDesc[0] = "The Material Editor provides functions to create and edit materials and maps. A material is data that you assign to the surface or faces of an object so that it appears a certain way when rendered. Materials affect the colour of objects, their glossiness, their opacity, and so on. The images or procedural effects you assign to materials are called maps.";

function tShowHide(id, show)
{
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	{
		s.innerHTML = fDesc[id];
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}