var fDesc=new Array();
fDesc[0] = "Variable Frequency Drives are becoming the standard in industry for precise control of motors and rotating equipment. The VFDTrainer is a tutorial on the basic operation, installation, programming and trouble shooting of these units. Some of the features available are: AC Motors, Uses of Variable Frequency Drives, Parts and Operation of a VFD, VFD Control, VFD Installation, VFD Start-up, Soft Starters, Trouble Shooting, Interactive Quiz.";

function tShowHide(id, show)
{
	var s = document.getElementById("desc");

	if ((s.innerHTML.length<=212 || show==1) && show!=2)
	{
		s.innerHTML = fDesc[id];
		if (document.getElementById('m1'))
			document.getElementById('m1').style.display='none';
		if (document.getElementById('m2'))
			document.getElementById('m2').style.display='none';
		if (document.getElementById('more_txt'))
			document.getElementById('more_txt').style.display='inline';
	}
	else
	{
		s.innerHTML = '';
	}
}