// JavaScript Document
function IsNull(str){return str+"" == "" ? true : false;}
function $(o){return (typeof o == "object") ? o : document.getElementById(o);}
function On(o){o.className="Open"}
function Off(o){o.className="Close"}
function Go(){var obj=$("keys");if(IsNull(obj.value)){alert("Key words should not be empty!");obj.focus();return false;}}
function NavSub(o)
{
	var obj=$(o).parentNode.getElementsByTagName("ul")[0];
	if(obj.className=='Close'){$(o).className="NavOn";On(obj);}
	else{$(o).style.backgroundPosition="right top";Off(obj);}
}
function Options(o,n)
{
	var S=$(o).parentNode.getElementsByTagName("h4");
	var C=$(o).parentNode.getElementsByTagName("div");
	var m=S.length;
	for(i=0;i<m;i++){S[i].className="S2";Off(C[i]);}
	o.className="S1";On(C[n]);
}