//旗下品牌显示
function header_common_projectsShow(tag)
{
	var header_common_projects = document.getElementById("header_common_projects");
	var header_common_projects_hvacr = document.getElementById("header_common_projects_hvacr");
	if(header_common_projects)
	{
		//alert(header_common_projects.style.left);
		header_common_projects.style.left = header_common_projects_hvacr.offsetLeft;
		header_common_projects.style.top = header_common_projects_hvacr.offsetTop + 19;
		//alert();
		//header_common_projects.style.left += 199;
		//header_common_projects.style.top += 122;
		if(tag == 0)
		{
			header_common_projects.style.display = "none";
			header_common_projects_hvacr.className = "qixia_bt";			
		}
		else
		{
			header_common_projects.style.display = "block";
			header_common_projects_hvacr.className = "qixia_bt1";
		}
	}
}

//获得Cookie解码后的值
function GetCookieVal(offset)
{
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1)
	endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}
//获取cookie值
function get_Cookie(cookieName) 
{
	var cookieString = document.cookie;
	var start = cookieString.indexOf(cookieName + '=');
	if (start == -1)
		return null; //不存在此cookie
	start += cookieName.length + 1;
	var end = cookieString.indexOf(';', start);
	if (end == -1) return unescape(cookieString.substring(start));
	return unescape(cookieString.substring(start, end));
}
//获取cookie子项值
function getUserItemValue(strUserInfo, itemName)
{
	var result = "";
	if (strUserInfo == null || strUserInfo == "")
		return result;
	var arrUserInfo = strUserInfo.split("&");
	for (var i = 0; i < arrUserInfo.length; i++) {
		if (arrUserInfo[i].indexOf(itemName) != -1) {
			var itemValue = arrUserInfo[i];
			var arritemValue = itemValue.split("=");
			result = arritemValue[1];
			return result;
		}
	}
	return result;
}

//根据cookie来显示
function SwitchLoginState()
{
	var UserName = "";
	var header_common_nologin = document.getElementById("header_common_nologin");
	var header_common_logined = document.getElementById("header_common_logined");
	
	var strResult = get_Cookie("UserInfo");
	alert(strResult);
	return;
	if(UserName == "")
	{
		header_common_nologin.style.display = "block";
		header_common_logined.style.display = "none";
	}
	else
	{
		header_common_nologin.style.display = "none";
		header_common_logined.style.display = "block";
	}	
}