var fDesc=new Array();
fDesc[0] = "SpeQ is a small, extensive mathematics program with a simple, intuitive interface. All calculations are entered in a sheet. In there you can freely add, edit and execute all calculations. You can define variables and functions, and plot graphs of your functions. You can save your calculations for later re-use.";

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