JQuery中实现Ajax与服务器通过json交互数据
1.JQuery中的简单的使用ajax。
2.各种浏览器对childNodes的解析不同，要特别注意。
3.百度地图api使用，在自己网页中添加百度地图。
ComplexCustomOverlay.prototype = new BMap.Overlay();ComplexCustomOverlay.prototype.initialize = function(map) {this._map = map;var div = this._div = document.createElement("div");div.style.position = "absolute";div.style.zIndex = BMap.Overlay.getZIndex(this._point.lat);div.style.backgroundColor = "#EE5D5B";div.style.border = "1px solid #BC3B3A";div.style.color = "white";div.style.height = "18px";div.style.padding = "2px";div.style.lineHeight = "18px";div.style.whiteSpace = "nowrap";div.style.MozUserSelect = "none";div.style.fontSize = "12px"var span = this._span = document.createElement("span");div.appendChild(span);span.appendChild(document.createTextNode(this._text));var that = this;var arrow = this._arrow = document.createElement("div");arrow.style.background = "url(http://map.baidu.com/fwmap/upload/r/map/fwmap/static/house/images/label.png) no-repeat";arrow.style.position = "absolute";arrow.style.width = "11px";arrow.style.height = "10px";arrow.style.top = "22px";arrow.style.left = "10px";arrow.style.overflow = "hidden";div.appendChild(arrow);div.onmouseover = function() {this.style.backgroundColor = "#6BADCA";this.style.borderColor = "#0000ff";this.getElementsByTagName("span")[0].innerHTML = that._overText;arrow.style.backgroundPosition = "0px -20px";};div.onmouseout = function() {this.style.backgroundColor = "#EE5D5B";this.style.borderColor = "#BC3B3A";this.getElementsByTagName("span")[0].innerHTML = that._text;arrow.style.backgroundPosition = "0px 0px";};mp.getPanes().labelPane.appendChild(div);return div;};ComplexCustomOverlay.prototype.draw = function() {var map = this._map;var pixel = map.pointToOverlayPixel(this._point);this._div.style.left = pixel.x - parseInt(this._arrow.style.left) + "px";this._div.style.top = pixel.y - 30 + "px";};?
