function my_show_div(itm) {
	if (!itm)
		return;
	itm.style.display = "";
}

function my_hide_div(itm) {
	if (!itm)
		return;		
	itm.style.display = "none";
}

function my_getbyid(id) {
	itm = null;		
	if (document.getElementById) {
		itm = document.getElementById(id);
	}
	else if (document.all) {
		itm = document.all[id];
	}
	else if (document.layers) {
		itm = document.layers[id];
	}
	return itm;
}

function toggleview(id) {
	if(!id)
		return;
	if (itm = my_getbyid(id)) {
		if(itm.style.display == "none")	{
			my_show_div(itm);
		}
		else {
			my_hide_div(itm);
		}
	}
}