function SetCookie(name,value)//两个参数，一个是cookie的名子，一个是值
{
    var Days = 30; //此 cookie 将被保存 30 天
    var exp  = new Date();    //new Date("December 31, 9998");
    exp.setTime(exp.getTime() + Days*24*60*60*1000);
    document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}
function getCookie(name)//get cookies       
{
    var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
     if(arr != null) return unescape(arr[2]); return null;

}
function delCookie(name)//del 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 formatInputPage (e,value,maxpage,query,maxPageNumber,type){ //限定输入页数格式
    var ie = navigator.appName=="Microsoft Internet Explorer"?true:false;
    if(!ie) var key = e.which;
    else var key = event.keyCode;//alert(key);
    if (key == 8 || key == 46 || (key >= 48 && key <= 57) || (key >= 96 && key <= 105)) {
		return true;
	}
	if(key == 13) {//alert(query + "   " + value.value + "   " + maxPageNumber + "   " + type);
		if(parseInt(value.value) > maxpage) {
			alert("对不起，你输入的页数大于总页数了!");
			value.value = "";
			value.focus();
			return;
		}
		getLimitPage(query, parseInt(value.value), maxPageNumber, type);
	}
    return false;
}