function op_dir(sdir,op){
	try{
		dir = document.getElementById(sdir)
		odir = document.getElementById(sdir+"_open")

		if(op){
			odir.style.display="block"
			dir.getElementsByTagName("IMG")[0].src = "images/opened_catalog.gif"
			dir.getElementsByTagName("IMG")[0].alt = "opened"
		}
		else{
			odir.style.display="none"
			dir.getElementsByTagName("IMG")[0].src = "images/closed_catalog.gif"
			dir.getElementsByTagName("IMG")[0].alt = "closed"
		}
	}
	catch(e){
	}
}

function judge_op(sdir){
	odir = document.getElementById(sdir+"_open")

	if(odir.style.display=="block"){
		op_dir(sdir,false)
	}
	else{
		op_dir(sdir,true)
	}
}
function GetArgsFromHref(sHref, sArgName){
	var args = sHref.split("?");
	var retval = "";
	
	if(args[0] == sHref) /*参数为空*/
	{
		return retval; /*无需做任何处理*/
	}
	var str = args[1];
	args = str.split("&");
	for(var i = 0; i < args.length; i ++){
		str = args[i];
		var arg = str.split("=");
		if(arg.length <= 1) continue;
		if(arg[0] == sArgName) retval = arg[1];
	}
	return retval;
}	

function show(v,count){	
	notshow(v,count)
	document.getElementById(v).style.display = 'inline';
}

function notshow(v,count){
	var v = v.substring(0,v.length-1)
	for(i =0;i<count;i++)
	{
		if(document.getElementById(v+i))
		{
			document.getElementById(v+i).style.display = 'none';
		}
	}
}

function indexNav(type){
	if(type==0){
		index=window.open("index.htm");
	}
	else{
		index=window.open("index.htm?type="+type);
	}
}

function initNav(){
	op_dir("xygk",false)
	op_dir("xyxw",false)
	op_dir("tsjy",false)
	op_dir("qfw",false)
	op_dir("sys",false)
	op_dir("tszh",false)
	op_dir("djzt",false)
	op_dir("shzy",false)
}