var active=null,_oE=null;
var subMenus=[
	["sub1","cat","web"],
	["sub2","cat","about"],
	["sub3","cat","place"],
	["sub4","cat","script"],
	["sub5","cat","linkz"],
	["sub6","cat","fun"],
	["sub7","cat","layout"]
];

function getElm(e){
	switch(true){
	case typeof(document.all)=="object":
		return document.all[e];
	case typeof(document.getElementById)=="function":
		return document.getElementById(e);
	default:
		return null;
	}
};

function showHide(s){
	var e=getElm(s);

	if(!e){
		return true;
	}

	if(active&&active!=e.id){
		var oE=getElm(active);
		if(document.all){
			oE.nextSibling.style.display=(window.opera)?"table-row":"block";
		} else {
			oE.nextSibling.nextSibling.style.display="table-row";
		}
		oE.style.display="none";
	}
	else if(!active&&find()){
		var i=subMenus.length;
		while(i-->0){
			if(e==getElm(subMenus[i][0])){
				if(document.all){
					_oE.nextSibling.style.display=(window.opera)?"table-row":"block";
				} else {
					_oE.nextSibling.nextSibling.style.display="table-row";
				}
				continue;
			} else {
				getElm(subMenus[i][0]).style.display="none";
			}
		}
	}

	if(e.style.display==""||e.style.display=="none"){
		if(document.all){
			e.style.display=(window.opera)?"table-row":"block";
			e.nextSibling.style.display="none";
		} else {
			e.style.display="table-row";
			e.nextSibling.nextSibling.style.display="none";
		}
	} else {
		if(document.all){
			e.nextSibling.style.display=(window.opera)?"table-row":"block";
		} else {
			e.nextSibling.nextSibling.style.display="table-row";
		}
		e.style.display="none";
	}

	active=e.id;

	return false;
};

function find(){
	if(subMenus.length<1 || location.search.indexOf("cat=")<1 || location.search.indexOf("cat=pics")>0){
		return 0;
	}

	var
		o=subMenus,
		i=o.length,
		l=location.search;
	while(i-->0){
		if(l.indexOf(o[i][1])>0){
			if(l.split(o[i][1])[1].indexOf(o[i][2])>0){
				_oE=getElm(o[i][0]);

				if(document.all){
					_oE.style.display=(window.opera)?"table-row":"block";
					_oE.nextSibling.style.display="none";
				} else {
					_oE.style.display="table-row";
					_oE.nextSibling.nextSibling.style.display="none";
				}
				continue;
			}
		}
		getElm(o[i][0]).style.display="none";
	}
	return 1;
};

window.onload=function(){
	find();
};