//fLibrary



// fCore: core functions of F Library



function fGetElementById(id)

{

	return(document.getElementById(id));

}



function fGetFirstChild(parent, childTag)

{

	var children = parent.childNodes;

	for(var i=0;i<children.length;i++) {

		if(children[i].tagName) {

			if(children[i].tagName.toLowerCase() == childTag.toLowerCase())

				return(children[i]);

		}

	}

	return(null);

}



function fLTrim(str)

{

	var whitespace = new String(" \t\n\r");

	var s = new String(str);

	if (whitespace.indexOf(s.charAt(0)) != -1) {

		var j=0, i = s.length;

		while (j < i && whitespace.indexOf(s.charAt(j)) != -1)

			j++;

		s = s.substring(j, i);

	}

	return(s.toString());

}



function fRTrim(str)

{

	var whitespace = new String(" \t\n\r");

	var s = new String(str);

	if (whitespace.indexOf(s.charAt(s.length-1)) != -1) {

		var i = s.length - 1;

		while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1)

			i--;

		s = s.substring(0, i+1);

	}

	return(s.toString());

}



function fTrim(str)

{

	return(fLTrim(fRTrim(str)));

}



// fMenu: part of F Library

//Dependencies: {xCore}



function fMenu(ul, selClass)

{ 

	try {

		selClass = fTrim(selClass);

		var menu, ret = false;

		if(typeof(ul) == 'string') {

			ul = fTrim(ul);

			menu = fGetElementById(ul);

		}

		else {

			menu = ul;

		}

		if(menu.hasChildNodes()) {

			var children = menu.childNodes;

			for(var i=0;i<children.length;i++) {

				var menuItem = fGetFirstChild(children[i], 'a');

				var subMenu = fGetFirstChild(children[i], 'ul');

				var inPath = false;

										

				if(menuItem && subMenu) {

					inPath = fMenu(subMenu, selClass);

					menuItem.onclick = fMenuToggle;

					if(!inPath && !fMenuMatchClass(children[i], selClass)) {

						subMenu.style.display = 'none';

					}

				}

				if(inPath || fMenuMatchClass(children[i], selClass))

					ret = true;

			}

		}

		return(ret);

	}

	catch(e) {

		alert(e.message);

	}

}



function fMenuMatchClass(node, className)

{

	var ret = false;

	if(node.className) {

		if(fTrim(node.className) == fTrim(className))

			ret = true;

	}

	return(ret);

}



function fMenuToggle()

{

	if(this) {

		var parent = this.parentNode;

		if(parent) {

			var subMenu = fGetFirstChild(parent, 'ul');

			if(subMenu) {

				if(subMenu.style.display != 'none')

					subMenu.style.display = 'none';

				else

					subMenu.style.display = 'block';

			}

		}

	}

	return(true);

}