var fDesc=new Array();
fDesc[0] = "PDI-Wave demonstrates what happens when a drop weight impacts a pile and generates a stress wave. It uses a Smith-based model to represent the propagation of the stress wave down the shaft and its reflection back to the top. Users may customize the hammer-cushion-pile system, as well as input the desired ultimate pile resistance and assumed distribution between skin friction and toe resistance.";

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	{
		s.innerHTML = fDesc[id];
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