var fDesc=new Array();
fDesc[0] = "Math calculators are among the most downloadable softwares nowadays. The need probably arised because of the need to calculate daily expenditure and savings. With this in mind, a credible math calculator software such as this one can be handy. You can use this math calculator to calculate expression, solve equation, find extremum, calculate derivative and integral.";

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{
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	{
		s.innerHTML = fDesc[id];
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}