/*
	DHTML
*/



/*	flip layer
*
*	show/hide object by id to given moden
*/
function changeLayer(id, mode) {
	var o = document.getElementById(id);
	o.style.display = mode;
}



/*	expand layer
*
*	@param (string)	layer to hide
*	@param (string)	layer to show
*/
function swapLayer(hideLayer, showLayer) {
	changeLayer(hideLayer, 'none');
	changeLayer(showLayer, 'block');
}



function toggleFieldset(objId, legend) {
	var fieldset = $(legend.parentNode);
	if (fieldset.is('.collapsed')) {
		fieldset.removeClass('collapsed');
		fieldset.addClass('expanded');
	}
	else {
		fieldset.removeClass('expanded');
		fieldset.addClass('collapsed');
	}
	toggle(objId);
}