function disfenlei(a,b)
{
	var i;
	for(i=0;i<b;i++)
	{
		if(i==a){
			document.getElementById("fenlei" + i).style.display = 'block';
		}else{
			document.getElementById("fenlei" + i).style.display = 'none';
		}
	}
}


//¶ÁÈ¡cookies
function getCookie(name){
var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
if(arr=document.cookie.match(reg)) return unescape(arr[2]);
else return null;
}

//JavaScriptÖÐɾ³ýCookieµÄÖµ
function deleteCookie( name, path, domain ) {
    if ( getCookie( name ) ) document.cookie = name + '=' + ( ( path ) ? ';path=' + path : '') + ( ( domain ) ? ';domain=' + domain : '' ) +';expires=Thu, 01-Jan-1970 00:00:01 GMT';
}

//ɾ³ýcookies
function delbooklistCookie(){
var name = "book110booklist"; 
var domain = "book110.cn";
var exp = new Date();
exp.setTime(exp.getTime() - 1);
//var cval=getCookie(name);
deleteCookie(name,"/",domain)
//if(cval!=null) document.cookie = name + "="+cval+ ((domain)?";domain="+domain:"") +";expires="+exp.toGMTString();   
//if(cval!=null) document.cookie= name + "="+cval+";domain="+url+";expires="+exp.toGMTString();
window.location.reload();
}