js漂浮廣告實現(xiàn)代碼（合集經(jīng)典）符合W3C

更新時間：2012年04月11日 20:58:09 作者：

js漂浮廣告實現(xiàn)代碼，實際上就是一個來回滾動的小圖片，碰到邊緣就返回，也是一種廣告形式，需要的朋友可以收藏下

第一種漂浮廣告不符合W3C
JavaScript漂浮廣告代碼，很不錯，代碼精簡，不過一次只有漂一個，復(fù)制就能用了。希望站長朋友喜歡。

第二種漂浮廣告不符合標準
Js漂浮廣告代碼，比較經(jīng)典的浮動廣告，到現(xiàn)還很實用，如果你是一位站長的話，這種代碼是必備的，希望對你有用處。

<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>漂浮廣告</title> </head> <body> <div   class="i0m0220"   id=img1 style="Z-INDEX: 100; LEFT: 2px; WIDTH: 59px; POSITION: absolute; TOP: 43px; HEIGHT: 61px; visibility: visible;"><a href="http://sc.jb51.net" target="_blank"><img src="/images/logo.gif" width="80" height="80" border="0"></a></DIV> <SCRIPT> var xPos = 300; var yPos = 200; var step = 1; var delay = 30; var height = 0; var Hoffset = 0; var Woffset = 0; var yon = 0; var xon = 0; var pause = true; var interval; img1.style.top = yPos; function changePos() { width = document.body.clientWidth; height = document.body.clientHeight; Hoffset = img1.offsetHeight; Woffset = img1.offsetWidth; img1.style.left = xPos + document.body.scrollLeft; img1.style.top = yPos + document.body.scrollTop; if (yon) {yPos = yPos + step;} else {yPos = yPos - step;} if (yPos < 0) {yon = 1;yPos = 0;} if (yPos >= (height - Hoffset)) {yon = 0;yPos = (height - Hoffset);} if (xon) {xPos = xPos + step;} else {xPos = xPos - step;} if (xPos < 0) {xon = 1;xPos = 0;} if (xPos >= (width - Woffset)) {xon = 0;xPos = (width - Woffset); } } function start() { img1.visibility = "visible"; interval = setInterval('changePos()', delay); } function pause_resume() { if(pause) { clearInterval(interval); pause = false;} else { interval = setInterval('changePos()',delay); pause = true; } } start(); </SCRIPT> </body> </html>

[Ctrl+A 全選注:引入外部Js需再刷新一下頁面才能執(zhí)行]

上面兩個都是不支持標準聲明的
第三種符合W3C的漂浮廣告代碼

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>符合W3C的漂浮廣告代碼-腳本之家</title> </head> <body> <script> document.write ("<div   class="c2ism0m"   id=img1 style='Z-INDEX: 100; LEFT: 2px; WIDTH: 252px; POSITION: absolute; TOP: 43px; HEIGHT: 172px; ") document.write (" visibility: visible;'> ") document.write (" <a href='http://s.jb51.net' target='_blank'> ") document.write (" <img src='/upload/201204/20120411210123566.gif'style=border:none;/> ") document.write (" </a></DIV> ") var xPos = 300; var yPos = 200; var step = 1; var delay = 8; var height = 0; var Hoffset = 0; var Woffset = 0; var yon = 0; var xon = 0; var pause = true; var interval; img1.style.top = yPos; function changePos() { width = document.documentElement.clientWidth; height = document.documentElement.clientHeight; Hoffset = img1.offsetHeight; Woffset = img1.offsetWidth; img1.style.left = xPos + document.documentElement.scrollLeft; img1.style.top = yPos + document.documentElement.scrollTop; if (yon) {yPos = yPos + step;} else {yPos = yPos - step;} if (yPos < 0) {yon = 1;yPos = 0;} if (yPos >= (height - Hoffset)) {yon = 0;yPos = (height - Hoffset);} if (xon) {xPos = xPos + step;} else {xPos = xPos - step;} if (xPos < 0) {xon = 1;xPos = 0;} if (xPos >= (width - Woffset)) {xon = 0;xPos = (width - Woffset); } } function start() { img1.visibility = "visible"; interval = setInterval('changePos()', delay); } function pause_resume() { if(pause) { clearInterval(interval); pause = false;} else { interval = setInterval('changePos()',delay); pause = true; } } start(); </script> </body> </html>

[Ctrl+A 全選注:引入外部Js需再刷新一下頁面才能執(zhí)行]

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