图片模拟滚动条网页特效-JS特效-爱易网页

图片模拟滚动条网页特效

日期：2014-05-18　浏览次数：20589 次

完美模拟滚动条.以下是HTML网页特效代码，点击运行按钮可查看效果：

以下是程序代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>simScroll</title>
<script language="JavaScript" type="text/javascript"> 
<!--
var
// 获取元素
$ = function(element) {
 return (typeof(element) == 'object' ? element : document.getElementById(element));
},
// 判断浏览器
brower = function() {
 var ua = navigator.userAgent.toLowerCase();
 var os = new Object();
 os.isFirefox = ua.indexOf ('gecko') != -1;
 os.isOpera = ua.indexOf ('opera') != -1;
 os.isIE = !os.isOpera && ua.indexOf ('msie') != -1;
 os.isIE7 = os.isIE && ua.indexOf ('7.0') != -1;
 return os;
},
// 获取鼠标位置
getXY = function (e) {
 var XY;
 if(brower().isIE) {
  //XY = new Array(event.clientX, event.clientY);
  var scrollPos;
  if (typeof window.pageYOffset != 'undefined') {
     scrollPos = {x : window.pageXOffset, y : window.pageYOffset};
  }else if(typeof document.compatMode != 'undefined' && document.compatMode != 'BackCompat') {
     scrollPos = {x : document.documentElement.scrollLeft, y : document.documentElement.scrollTop};
  }else if(typeof document.body != 'undefined') {
     scrollPos = {x : document.body.scrollLeft, y : document.body.scrollTop};
  }
  XY = new Array(
   window.event.clientX + scrollPos.x - document.body.clientLeft,
   window.event.clientY + scrollPos.y - document.body.clientTop
  );
 }else{
  XY = new Array(e.pageX, e.pageY);
 }
 return XY;
},
// 获取元素坐标
getCoords = function(node){
 var x = node.offsetLeft;
 var y = node.offsetTop;
 var parent = node.offsetParent;
 while (parent != null){
  x += parent.offsetLeft;
  y += parent.offsetTop;
  parent = parent.offsetParent;
 }
 return {x: x, y: y};
},
EndEvent = function(e) {
 e = e || window.event;
 e.stopPropagation && (e.preventDefault(), e.stopPropagation()) || (e.cancelBubble = true, e.returnValue = false);
},
// 拖动元素
DragEle = function(obj, dObj, area, handler) {
 obj = $(obj);
 dObj = $(dObj);
 //obj.style.cursor = "move";
 
 obj.onmousedown = function(e) {
  var _tX, _tY, _sX, _sY, _mX, _mY
  var minX, minY, maxX, maxY;
  minX = area.minX==undefined ? 0 : area.minX;
  minY = area.minY==undefined ? 0 : area.minY;
  maxX = area.maxX==undefined ? _pageSize[0] : area.maxX;
  maxY = area.maxY==undefined ? _pageSize[1] : area.maxY;
  
  with(dObj) {
   // 记录当前位置
   style.position = 'absolute';
   _tX = offsetLeft;
   _tY = offsetTop;
   _sX = getXY(e)[0];
   _sY = getXY(e)[1];
  }
  if(dObj.setCapture) {
   dObj.setCapture();
  }else if(window.captureEvents) {
   window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP);
  }
  
  myAddEventListener(document, "selectstart", EndEvent);
  EndEvent(e);
  
  if(handler.down!=undefined) handler.down({x : _sX, y : _sY});
  
  document.onmousemove = function(e){
   // 设置滚动条位置
   _mX = _tX+getXY(e)[0]-_sX;
   _mY = _tY+getXY(e)[1]-_sY;
   _mX = _mX<minX ? minX : _mX;
   _mY = _mY<minY ? minY : _mY;
   _mX = _mX>maxX ? maxX : _mX;
   _mY = _mY>maxY ? maxY : _mY;
   with(dObj){
    style.left = _mX +'px';
    style.top = _mY +'px';
   }
   if(handler.move!=undefined) handler.move({x : _mX, y : _mY});
  };
  
  document.onmouseup = function() {
   if(dObj.releaseCapture) {
    dObj.releaseCapture();
   }else if(window.captureEvents) {
    window.captureEvents(Event.MOUSEMOVE|Event.MO</div></div>

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