// Hide and reveal sub navigation for louis marine
//Byron Spencer

var t;
function startTimer(){
	t = setTimeout("hideAll()", 1000);
}
function stopTimer(){
	clearTimeout(t);
}
function showSubNav(layerid) {
	stopTimer();
	layers_array = getElementsByClass('sub_nav', null, null);
	for(i = 0; i < layers_array.length; i++){
		layers_array[i].style.display="none";
	}
	layer = document.getElementById(layerid);
	layer.style.display="inline";
}
function hideAll() {
	layers_array = getElementsByClass('sub_nav', null, null);
	for(i = 0; i < layers_array.length; i++){
		layers_array[i].style.display="none";
	}
}
function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\\\s)"+searchClass+"(\\\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}