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捌玖网络工作室 » 网页编程 » 网页之不断弹射的文字-特效

zw2004 发表于 2008-1-21 20:55

网页之不断弹射的文字-特效

<style type="text/css">Z }-tF@c?.t?
#supertext { V!l'A3z.KXoQ
position:absolute;
left:0;
top:0;
visibility:hide;
visibility:hidden;
}*}ey%p4bm{
</style>
<script language="JavaScript1.2">}7k"?,Ji)}

var thecontent='<h2><font size="2" face="宋体" color="FF0000">欢迎光临七色风网页家园</font></h2>'3C{[0?4K!Us
var hidetimer='';S6v1T0L{ xoVA

var BallSpeed = 20;1}``t+l+^$XHf
var contentWidth;
var contentHeight;'T*ge*an |9K*b4hz
var maxBallSpeed = 50;#LNCv*ZL"@%j,o

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var xMax;x^K6e&v*_R
var yMax;I3G4[(k$flW_.E1\
var xPos = 0;'q WfSfo4E
var yPos = 0;jb%\b%ls Xs7AY
var xDir = 'right'; A&Ct(g1T9JR0@
var yDir = 'down';,^2wO|x(`?WLy
var superballRunning = true;1d'Ao2z9E6i2FrI;k
var tempBallSpeed;,TSk.ysOUq
var currentBallSrc;TA@1Q2[
var newXDir;V'NQ(s*Jif:Y
var newYDir;

function initializeBall() {
if (document.all) {Z$Pe;z8~0~rd
   xMax = document.body.clientWidth
   yMax = document.body.clientHeight$cK D"p{
   document.all("supertext").style.visibility = "visible";
   contentWidth=supertext.offsetWidth pS2@3i+tI9[
   contentHeight=supertext.offsetHeight
   }.p0h.rD?|Xgyg
else if (document.layers) {B0M5a*CA$qM8[
   xMax = window.innerWidth;s JiN'{\.Q
   yMax = window.innerHeight;bF1w@D!b5X*f'm2]
   contentWidth=document.supertext.document.width
   contentHeight=document.supertext.document.height
   document.layers["supertext"].visibility = "show";T)?wT8T(Y#vb
   }
setTimeout('moveBall()',400);*{I,l w]}0d8TnF
if (hidetimer!='')K6c5F3bL3`^
setTimeout("hidetext()",hidetimer)
}SIU8? I

function moveBall() {
if (superballRunning == true) {pH,DZ'`j
   calculatePosition();
   if (document.all) {
      document.all("supertext").style.left = xPos + document.body.scrollLeft;
      document.all("supertext").style.top = yPos + document.body.scrollTop;,l[.Se9v r
      }@)m$sF)PNa'},]m
   else if (document.layers) {
      document.layers["supertext"].left = xPos + pageXOffset;!k"E1@&^4GT
      document.layers["supertext"].top = yPos + pageYOffset;&{:n? z{
      }
   animatetext=setTimeout('moveBall()',20);[kQ3DDf"X0Bl2Ane
   }
}.z K|&^?X
;[;u%M"G7RTru
function calculatePosition() {
if (xDir == "right") {,g_xS#q3fo
   if (xPos > (xMax - contentWidth - BallSpeed)) {ae%m5k!`/xM
      xDir = "left";a-OQ?w {
      }
   }
else if (xDir == "left") {
   if (xPos < (0 + BallSpeed)) {
      xDir = "right";!zgmxE;u c
      }
   }H2oz-]N DOr
if (yDir == "down") {+|7OZKo8M6U+O|E
   if (yPos > (yMax - contentHeight - BallSpeed)) {^_:Y-J ax(?7m
      yDir = "up";
      }
   }:x2~1R _o9e
else if (yDir == "up") {
   if (yPos < (0 + BallSpeed)) {aP%G!qNM)vS9R
      yDir = "down";(V:z g \mI
      }
   }n{})h1F%P
if (xDir == "right") {.k.kkrCuLT0~3l
   xPos = xPos + BallSpeed; R+qUdc@Y
   }1Y G6nXbwn:`
else if (xDir == "left") {$b7Q!f0TFze
   xPos = xPos - BallSpeed;|)Pdn3D`
   }
else {
   xPos = xPos;3|6^%nH2X0H0y
   }
if (yDir == "down") {7D['v|Sq0J|
   yPos = yPos + BallSpeed;
   }g T.j(s2{
else if (yDir == "up") {'YEx]WB
   yPos = yPos - BallSpeed;
   }/O3}m8h![{2sa
else {"K7ft#~)K_V"O[6@pj
   yPos = yPos;
   } Oq_` R0Ws_ ki
}0}Q t$T Z_

function hidetext(){Okj@R
if (document.all).I7ii3Y9X
supertext.style.visibility="hidden"
else if (document.layers) sc"zU|9xc
document.supertext.visibility="hide"
clearTimeout(animatetext)|j2n4go$aq)y
}Huw c_

if (document.all||document.layers){
document.write('<span id="supertext"><nobr>'+thecontent+'</nobr></span>')
window.onload = initializeBall;gVB ZT6BY
window.onresize = new Function("window.location.reload()");
}{_Yw+nR

</script>

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