var fDesc=new Array();
fDesc[0] = "Supplied complete with two calibrated 30 mV/g accelerometers, AC/DC power supply and all required cables, the acquisition unit is housed in a rugged Peli box and connects to a Windows PC via the USB port.<br /> <br /> The unit uses eight Sigma Delta converters for zero sample skew data. The gain of each channel is automatically set by means of a test sweep to maximize dynamic range of the acquired signals. Raw data can be saved to the PC&rsquo;s hard drive in SEG-D format files for post-processing and results can be saved as graphics files.<br /> <br /> All acquired signals, including a weighted sum force analogue signal, are buffered and may be connected to a seismic instrument for independent recording.<br /> <br /> There are eight channels which may be configured as voltage inputs or for use with accelerometers.";

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 = '';
	}
}