var fDesc=new Array();
fDesc[0] = "A psychrometric chart is a design tool to graph a building's HVAC thermodynamic air conditions and processes. Properties displayed on a chart include dry-bulb temperatures, wet-bulb temperatures, dewpoint temperatures, relative humidity, humidity ratio, specific volume, and enthalpy. This program version permits the user to enter state points and graph the air conditioning process, while also calculating additional air properties.";

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{
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	{
		s.innerHTML = fDesc[id];
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