function changeDisplay(theChecked,theWhat) {
	var theNode;
	var theDisplay;
	/* alert("in changeDisplay. theWhat=" + theWhat + " theChecked = " + theChecked);  */
	if (theChecked == true)
		theDisplay = "";
	else
		theDisplay = "none";
	for (var i=1;;i++) {
		// Check if the getElementById method is available
		if (document.getElementById) {
			theNode = document.getElementById(theWhat + i);
			/* alert(theNode); */
			if (theNode == null) {
				return;
			}
		} else if (document.all) {
			// The alert lets me verify that I tested the path.
			alert("Running an older version of IE." + " May not be able to hide rows");
			theNode = document.all[theWhat+i];
			if (theNode == null){
				return;
			}
		} else {
			alert("Cannot change visibility of the display element." + " Was " + theWhat);
			return;
		}
		theNode.style.display = theDisplay;
	}
}
function changeAll(all) {
	var all = [""];
	for (var i = 0; i < all.length; i++) {
		changeDisplay(false, all[i]);
	}
}