function chgIN2 (in2, selected) 
	{
		if (selected != "")
			var selectedArray = eval ("Arr"+selected);
		else
			var selectedArray = Arr0;
		while (selectedArray.length < in2.options.length) 
			in2.options[(in2.options.length - 1)] = null;
		for (var i = 0; i < selectedArray.length; i++) 
			eval("in2.options[i]=" + "new Option" + selectedArray[i]);
	}
	function setIN1 (in1) 
	{
		while (ArrInst.length < in1.options.length) 
			in1.options[(in1.options.length - 1)] = null;
		for (var i = 0; i < ArrInst.length; i++) 
			eval("in1.options[i]=" + "new Option" + ArrInst[i]);
	}