function formatInputPage(e){ //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;
		if (key == 8 || key == 46 || (key >= 48 && key <= 57)) return true;
		return false;
	};
function checkpagenum(){
	var pagenumber = document.getElementById("pagenum").value;
	var pageMax = 96;
	if(pagenumber=="" || parseInt(pagenumber) > pageMax){
		alert("页码不正确!");
	}else{
		window.location.href = "http://www.dp918.com/pid="+pagenumber;
	};
};