function $id(id)
{
	return document.getElementById(id);
}

function getPara()
{
	var url = location.href;
	if (url == "http://www.imqq.com" || url == "http://www.imqq.com/" || url == "http://www.imqq.com/index.shtml" || url == "www.imqq.com" || url == "http://enimqq.oa.com/" || url == "http://enimqq.oa.com/index.shtml")
	{
		$id("headerNavHome").className = "on";
	}
	else if(url.indexOf("features.shtml") > -1)
	{
		$id("headerNavFeatures").className = "on";
	}
	else if(url.indexOf("download.shtml") > -1)
	{
		$id("headerNavDownload").className = "on";
	}
	else if(url.indexOf("signup.shtml") > -1)
	{
		$id("headerNavAccount").className = "on";
	}
	else if(url.indexOf("groups") > -1)
	{
		$id("headerNavGroups").className = "on";
	}
	else if(url.indexOf("help") > -1)
	{
		$id("headerNavHelp").className = "on";
	}
}

function getHelpPara()
{
	if (location.search)
	{
		var helpPara = (location.search).substring(1);
		var sourceArr = [];
		sourceArr = helpPara.split("&");
		var paraArr = []
		for (var i = 0; i < sourceArr.length; i++)
		{
			paraArr[i] = sourceArr[i].split("=");
		}
		$id("c" + paraArr[0][1] + "_" + paraArr[1][1]).className = "on";
	}
}

function getGroupsPara()
{
	var url = location.href;
	if (url)
	{
		if(url.indexOf("join_suc.shtml") > -1 || url.indexOf("join.shtml") > -1){
			$id("join").className = "on";
		}
		else if(url.indexOf("intro.shtml") > -1)
		{
			$id("intro").className = "on";
		}
	}
}

function leftNavTurnStatus(obj,menu)
{
	if (obj.className == "navParentClose")
	{
		obj.className = "navParentOpen";
		$id(menu).style.display = "block";
	}
	else
	{
		obj.className = "navParentClose";
		$id(menu).style.display = "none";
	}
}