Discuz的相对浏览器位置固定的漂浮代码
/*
[Discuz!] (C)2001-2007 Comsenz Inc.
This is NOT a freeware, use is subject to license terms
$RCSfile: floatadv.js,v $
$Revision: 1.5 $
$Date: 2007/06/01 22:31:15 $
*/
var delta=0.2;//0.15;
var collection;
var closeB=false;
function floaters() {
this.items = [];
this.addItem = function(id,x,y,content) {
document.write('<div id=' + id + ' style="z-index: 10; position: absolute; width:' + (document.body.clientWidth - (typeof(x) == 'string' ? eval(x) : x)*2) + 'px; left:' + (typeof(x) == 'string' ? eval(x) : x) + ';top:' + (typeof(y) == 'string'? eval(y) : y) + '">' + content + '</div>');
var newItem = {};
newItem.object = document.getElementById(id);
newItem.x = x;
newItem.y = y;
this.items[this.items.length] = newItem;
}
this.play = function() {
collection = this.items;
setInterval('play()',1);
}
}
function play() {
if(screen.width <= 800 || closeB) {
for(var i = 0;i < collection.length;i++) {
collection[i].object.style.display = 'none';
}
return;
}
for(var i = 0;i < collection.length;i++) {
var followObj = collection[i].object;
var followObj_x = (typeof(collection[i].x) == 'string' ? eval(collection[i].x) : collection[i].x);
var followObj_y = (typeof(collection[i].y) == 'string' ? eval(collection[i].y) : collection[i].y);
if(followObj.offsetLeft != (document.documentElement.scrollLeft + followObj_x)) {
var dx = (document.documentElement.scrollLeft + followObj_x - followObj.offsetLeft) * delta;
dx = (dx > 0 ? 1 : -1) * Math.ceil(Math.abs(dx));
followObj.style.left = (followObj.offsetLeft + dx) + 'px';
}
if(followObj.offsetTop != (document.documentElement.scrollTop + followObj_y)) {
var dy = (document.documentElement.scrollTop + followObj_y - followObj.offsetTop) * delta;
dy = (dy > 0 ? 1 : -1) * Math.ceil(Math.abs(dy));
followObj.style.top = (followObj.offsetTop + dy) + 'px';
}
followObj.style.display = '';
}
}
function closeBanner() {
closeB = true;
return;
}
var theFloaters = new floaters();
[Discuz!] (C)2001-2007 Comsenz Inc.
This is NOT a freeware, use is subject to license terms
$RCSfile: floatadv.js,v $
$Revision: 1.5 $
$Date: 2007/06/01 22:31:15 $
*/
var delta=0.2;//0.15;
var collection;
var closeB=false;
function floaters() {
this.items = [];
this.addItem = function(id,x,y,content) {
document.write('<div id=' + id + ' style="z-index: 10; position: absolute; width:' + (document.body.clientWidth - (typeof(x) == 'string' ? eval(x) : x)*2) + 'px; left:' + (typeof(x) == 'string' ? eval(x) : x) + ';top:' + (typeof(y) == 'string'? eval(y) : y) + '">' + content + '</div>');
var newItem = {};
newItem.object = document.getElementById(id);
newItem.x = x;
newItem.y = y;
this.items[this.items.length] = newItem;
}
this.play = function() {
collection = this.items;
setInterval('play()',1);
}
}
function play() {
if(screen.width <= 800 || closeB) {
for(var i = 0;i < collection.length;i++) {
collection[i].object.style.display = 'none';
}
return;
}
for(var i = 0;i < collection.length;i++) {
var followObj = collection[i].object;
var followObj_x = (typeof(collection[i].x) == 'string' ? eval(collection[i].x) : collection[i].x);
var followObj_y = (typeof(collection[i].y) == 'string' ? eval(collection[i].y) : collection[i].y);
if(followObj.offsetLeft != (document.documentElement.scrollLeft + followObj_x)) {
var dx = (document.documentElement.scrollLeft + followObj_x - followObj.offsetLeft) * delta;
dx = (dx > 0 ? 1 : -1) * Math.ceil(Math.abs(dx));
followObj.style.left = (followObj.offsetLeft + dx) + 'px';
}
if(followObj.offsetTop != (document.documentElement.scrollTop + followObj_y)) {
var dy = (document.documentElement.scrollTop + followObj_y - followObj.offsetTop) * delta;
dy = (dy > 0 ? 1 : -1) * Math.ceil(Math.abs(dy));
followObj.style.top = (followObj.offsetTop + dy) + 'px';
}
followObj.style.display = '';
}
}
function closeBanner() {
closeB = true;
return;
}
var theFloaters = new floaters();
调用方法:
theFloaters.addItem('floatAdv1','document.documentElement.clientWidth-60','document.documentElement.clientHeight-60','<div style="position: absolute; left: 6px; top: 6px;">漂浮</div>');
theFloaters.play();
theFloaters.play();