function Switch(id){
	HideAll();
	Show(id);
}

function HideAll(){
	item = document.getElementById('m' + id);
	for(i = 0;i < item.length; i++){
		item.style.display = 'none';
	}
}


function Switch(id){	
	HideAll();
	Show(id);
}

function HideAll(){
	for(var i = 1; i < 5; i++){
		if(document.getElementById('m' + i)){
			Hide('m' + i);
		}
	}		  
}

function Hide(id){
	if(document.getElementById){
		document.getElementById(id).style.display = 'none';
	}else{
		if(document.layers){
			document.id.display = 'none';
		}else{
			document.all.id.style.display = 'none';
		}
	}
}

function Show(id){
	if(document.getElementById){
		document.getElementById(id).style.display = 'block';
	}else{
		if(document.layers){
			document.id.display = 'block';
		}else{
			document.all.id.style.display = 'block';
		}
	}
}

function ShowOrHide(id){
	if (id != null){
		var item = null;
		if(document.getElementById){
			item = document.getElementById(id);
		}else if(document.all){
			item = document.all[id];
		}else if(document.layers){
			item = document.layers[id];
		}
		if(item.style){
			if(item.style.display == 'none'){
				item.style.display = 'block';
			}else{
				item.style.display = 'none';
			}
		}else{
			item.visibility = 'visible';
		}
	}
}