var O7chkboxes = new Array();
var O7chkboxesINIT = new Array();

function O7chkboxSwitch(prefix, id, initialState, value) {
	if(!O7chkboxesINIT[id]) {
		O7chkboxesINIT[id] = 1;
		O7chkboxes[id] = initialState;
	}
	O7chkboxes[id] = (O7chkboxes[id]==1)? 0:1;
	aid = 'a' + id;
	document.getElementById(aid).className = prefix + ((O7chkboxes[id]==1) ? 'O7chkboxNE' : 'O7chkboxFE');
	document.getElementById(id).value = (O7chkboxes[id]==1) ? value : '';
	return false;
}
	function showhideElement(elem) {
		document.getElementById(elem).style.display = 
		(document.getElementById(elem).style.display == 'block') ? 'none':'block';
		return false;
	}