滚动条加载

/**
 * 绑定滚动事件
 * */
$(window).scroll(function () {	
	loadData();
})
	
function loadData() {
    totalheight = parseFloat($(window).height()) + parseFloat($(window).scrollTop());
    console.log(totalheight);
    console.log($(document).height());
    if ($(document).height() <= totalheight+3) {
        //下拉加载时运行
    	add_data();    
    }
}

//查询分页数据
function add_data(){
	var page=parseInt($("#page").val())+1;
	var wish_type=$(".curriculum-nav").find(".active").attr("zt");
	var jsonObj = {
			"page" : page,
			"wish_type" : wish_type
			
	};
	var jsonAjax = {
			"url" : "wishWall_findByType.html",
			"jsonData" : {
		"mapStr" : jsonToStr(jsonObj)
	},
	"methodName" : wishWall_find_addIndexBack
	
	};
	getAjaxData(jsonAjax);
}

//回调
function wishWall_find_addIndexBack(jsonObj) {
	var data = jsonObj.data;
	$('.wishWall-list:last-child' ).append(data);
	if(isNaN(data)){
		$("#page").val(parseInt($("#page").val())+1);
	}
	console.log($("#page").val());
}