ns4 = (document.layers)?true:false
ie4 = (document.all)?true:false
loadComplete = false
function preload(imgObj,imgSrc) {
	if (document.images) {
		eval(imgObj+' = new Image()')
		eval(imgObj+'.src = "'+imgSrc+'"')
	}
}
function LayerSH(LayerName,Status) {
		if (document) {
			LayerN = document.all[LayerName].style
			if (Status == 'show') LayerN.visibility = 'visible';
			if (Status == 'hide') LayerN.visibility = 'hidden';
		}
}				 
function oneShow(LayerName,Status) {
	allHide();
	LayerSH(LayerName,Status);	
}		
function allHide(){	
	LayerSH('sub021','hide');
	LayerSH('sub022','hide');
	LayerSH('sub023','hide');	
	LayerSH('sub024','hide');
	LayerSH('sub025','hide');
	LayerSH('sub026','hide');
	LayerSH('sub027','hide');	
	LayerSH('sub028','hide');
	//LayerSH('sub028','hide');	
		
}