// JavaScript Document
function toggler( str )
{
	var elem, vis;
	if( document.getElementById ) // this is the way the standards work
		elem = document.getElementById( str );
	else if( document.all ) // this is the way old msie versions work
		elem = document.all[str];
	else if( document.layers ) // this is the way nn4 works
		elem = document.layers[str];
	vis = elem.style;
	if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
		vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
	vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}