function setSubNav(ob,set){
	var i = 0;
	var dropper = ob.childNodes[i];
	while(dropper != null && dropper.nodeName.toLowerCase() != "ul")
	{dropper = ob.childNodes[++i];}
	
	if (dropper) {
		if (set == "show"){
			dropper.style.display = 'block';
		}
		if (set == "hide"){
			dropper.style.display = 'none';
		}
		if( set == "toggle" ){
			if( dropper.style.display == 'none' )
				dropper.style.display = 'block';
			else
				dropper.style.display = 'none';
		}		
	}
}