function getQuery(name)
{
    var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");
    var r = window.location.search.substr(1).match(reg);
    if (r!=null) return unescape(r[2]); return null;
}


function SetCookie(name,value)//两个参数，一个是cookie名，一个是值
{
	var Days = 1; //此cookis将被保存1天
	var exp   = new Date();
	exp.setTime(exp.getTime() + Days*24*60*60*1000);
	document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}

function getCookie(name)//取cookies值       
{
	var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
	if(arr != null) return unescape(arr[2]); return null;
}

function delCookie(name)//删除cookie
{
	var exp = new Date();
	exp.setTime(exp.getTime() - 1);
	var cval=getCookie(name);
	if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}

function setHomepage()
{
	var url = "http://www.gddhn.com"; 
	if (document.all)
	{
		document.body.style.behavior='url(#default#homepage)';
		document.body.setHomePage(url);
	}
	else if (window.sidebar)
    	{
    		if(window.netscape)
    		{
         		try
   			{ 
            			netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect"); 
         		} 
         		catch (e) 
         		{ 
    				alert("此操作被浏览器拒绝！\n请在浏览器地址栏输入“about:config”并回车\n然后双击[signed.applets.codebase_principal_support]设置为'true'");
         		}
    		}
    		var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components. interfaces.nsIPrefBranch);
    		prefs.setCharPref('browser.startup.homepage',url);
	}
}

function addfavorite()
{
	var url = "http://www.gddhn.com"; 
	var tname="广东大华农动物保健品股份有限公司";
   	if(document.all)
	{
		window.external.addFavorite(url,tname);
	}
	else if (window.sidebar)
    	{
		window.sidebar.addPanel(tname,url, "") 
	}
}