/***********************************************

* TOGGLE VISIBILITY

* Function to toggle visibility of objects, normally used for DIVs.

* Inputs are ID of object (object must have an ID), followed by display style: e.g. "block" or "inline"

* Copyright Marian Zamfirescu. This note must be kept with all instances of the sripts wherever used.

* This script may not be re-distributed in any for-profit form.

***********************************************/

function showhide(obj, displaystyle){

	prop = "display";

	switch (true) {

	case (document.getElementById(obj).style[prop] == "" ):

		document.getElementById(obj).style[prop] = "none";

		break;

	case (document.getElementById(obj).style[prop] != displaystyle):

		document.getElementById(obj).style[prop] = displaystyle;

		break;

	default :

		document.getElementById(obj).style[prop] = "none";

	}

}