// check selected, return id
function CheckedID (strAction, objClassName)
{
	checkedCount = $("."+objClassName+":checked").length;	
	var checkedID = '';	
	$("."+objClassName).each(function(){
		if($(this).attr("checked") == true)
		{
			if (checkedID == '')
			{
				checkedID = $(this).val();
			}
			else
			{
				checkedID += ','+ $(this).val();
			}
		}
	});

	if (checkedCount == 0)
	{
		alert ('请选择项目');
		return false;
	}

	if (strAction == 'Edit')
	{
		if (checkedCount > 1)
		{
			alert ('只能选择一个项目');
			return false;
		}
	}
	
	return checkedID;
}

function getQueryString(name, url) 
{     
	if (url == '')
	{
		url = location.href;
	}

	//alert (url);

	var reg = new RegExp("(^|\\?|&)"+ name +"=([^&]*)(\\s|&|$)", "i");
	if (reg.test(url)) return unescape(RegExp.$2.replace(/\+/g, " ")); return ""; 
}

function in_array(stringToSearch, arrayToSearch) 
{
    for (s = 0; s <arrayToSearch.length; s++) 
	{
        thisEntry = arrayToSearch[s].toString();
        if (thisEntry == stringToSearch) 
		{
            return true;
        }
    }
    return false;
}

function GetCookie(cookieName)
{ 
	var cookieString = document.cookie; 
	var start = cookieString.indexOf(cookieName+'='); 
	if(start==-1)   //   找不到
	{
		return   null;
	}
	start += cookieName.length+1; 
	var end = cookieString.indexOf(";",start); 
	if(end == -1) return unescape(cookieString.substring(start)); 
		
	return   unescape(cookieString.substring(start,end)); 
}