function toggleDiv( whichLayer )
{
	var elem, vis;
	if( document.getElementById ){ // this is the way the standards work
		elem = document.getElementById( whichLayer );
	} else if( document.all ) {// this is the way old msie versions work
		elem = document.all[whichLayer];
	} else if( document.layers ){ // this is the way nn4 works
		elem = document.layers[whichLayer];
	}
	vis = elem.style;
	// if the style.display value is blank we try to figure it out here
	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';
}

function hideDiv( whichLayer ){
	var elem, vis;
	if( document.getElementById ){ // this is the way the standards work
		elem = document.getElementById( whichLayer );
	} else if( document.all ) {// this is the way old msie versions work
		elem = document.all[whichLayer];
	} else if( document.layers ){ // this is the way nn4 works
		elem = document.layers[whichLayer];
	}
	vis = elem.style;
	// if the style.display value is blank we try to figure it out here
	if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined){
		vis.display = 'none';
	}
	vis.display = 'none';
}

function showDiv( whichLayer ){
	var elem, vis;
	if( document.getElementById ){ // this is the way the standards work
		elem = document.getElementById( whichLayer );
	} else if( document.all ) {// this is the way old msie versions work
		elem = document.all[whichLayer];
	} else if( document.layers ){ // this is the way nn4 works
		elem = document.layers[whichLayer];
	}
	vis = elem.style;
	// if the style.display value is blank we try to figure it out here
	if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined){
		vis.display = 'block';
	}
	vis.display = 'block';
}