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">2y'[,b5u@V?5m
#supertext {w8Fv$S^
position:absolute;
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k left:0;/]Mv.}#y%X ?v,g
top:0;)RsDY{)kw1V v
visibility:hide;&Yl ^bGP`
visibility:hidden;
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</style>
&if9Qa;c#v9z <script language="JavaScript1.2">i7GFA
gq [_
<!-- 改变下的字体的大小。颜色-->
`.{;lI z!Cj4]:? var thecontent='<h2><font size="2" face="宋体" color="FF0000">欢迎光临七色风网页家园</font></h2>'(C0sB4t
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var hidetimer='';uF7dzb0z6D
<!-- 改变下的弹跳速度-->
+Z7O6c*H QG var BallSpeed = 20;x:W)lY6y~.T
var contentWidth;u.c(O[3@/n#M,w'?
var contentHeight;1B#LpW%uU.q7Ddg[
var maxBallSpeed = 50;
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om&@'U ukUOJ2fOG]
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var xMax;
Jp!vs$Z3t(n4}B var yMax;@Fo"Z _j@:T;{l
var xPos = 0;BEf.A-D1qw
var yPos = 0; V&l;SP8Jom~Hq"C
var xDir = 'right';h9gRy"_R
var yDir = 'down';8X e(qp&U`q
var superballRunning = true; v+o k.^*s9l?
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var tempBallSpeed;,Q;}zdkv;k
var currentBallSrc;
+d#hCC_W var newXDir;qfHDH`|
var newYDir;-[ Tt"sG"hN,h

"o'lb%VprcVW function initializeBall() {d/_Ol0Uj
   if (document.all) {
Q!\k:LRyp       xMax = document.body.clientWidth
aN zx:u4N       yMax = document.body.clientHeight.M3}!n.XQ
      document.all("supertext").style.visibility = "visible";
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      contentWidth=supertext.offsetWidth#ew-O%C!e|3H@
      contentHeight=supertext.offsetHeight
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ZGAJUm%E       }
fV]"J`;h*N    else if (document.layers) {
JGQb@u]sfTzm r       xMax = window.innerWidth;b2X |c7V ]A"|
      yMax = window.innerHeight;'kyd@_M+G'Us
      contentWidth=document.supertext.document.width
;g Qa/H!lvuz       contentHeight=document.supertext.document.height
4daR}$iv%y       document.layers["supertext"].visibility = "show";$`6K-tP,jHDI
      }
:Es0c8e%}/Y    setTimeout('moveBall()',400);
kf\(Xo3aX    if (hidetimer!='')
%F
T&Vo%|-TKt9D    setTimeout("hidetext()",hidetimer)*sS Q'b#b YJ
   }
#W]*l0m1|
s ov[e6^ function moveBall() {/w2h-L@({:k!u
   if (superballRunning == true) {6l4q} iC8pW
      calculatePosition();[)i:Nfg ~&B?6Y
      if (document.all) {
{jo4o+JU-X          document.all("supertext").style.left = xPos + document.body.scrollLeft;8ntD-O"v5t G7C
         document.all("supertext").style.top = yPos + document.body.scrollTop;
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Kb          }~;Y k"d#NO7V9SQ
      else if (document.layers) {W?:nI{G!V6}8~
         document.layers["supertext"].left = xPos + pageXOffset;
k%iD'Qn9Q          document.layers["supertext"].top = yPos + pageYOffset;
&lC+a(g Sy6]          }
+}p*p]S,{$K       animatetext=setTimeout('moveBall()',20);
;NFB:S8f\O       }GQyCJ)] OT$nT
   }@{6@eY[N.`XX2s4Z'[
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function calculatePosition() {i!@'`9yP7G2m#Y
   if (xDir == "right") {0`!]3| m\$`
      if (xPos > (xMax - contentWidth - BallSpeed)) {SLZ`;g eN)L;D%ai
         xDir = "left";
6AJ-] tdtG          }*wO:lYNs
      }:^+I A?bAm)d
   else if (xDir == "left") {
5|o/ZgUR
H!y       if (xPos < (0 + BallSpeed)) {
Gpem(ig#O          xDir = "right";
q}yaP*e          }
LXofs"Mf       }
#e4B'jy_t;M8q)?9{    if (yDir == "down") {x|.D-@di9f
      if (yPos > (yMax - contentHeight - BallSpeed)) {
|q~n4\          yDir = "up";*M3u WG"h/c.OfA
         }b&{ fR7Nz {)J}&b
      }
)aAoAdnt v
h.FT    else if (yDir == "up") {.Fs0k g'cIx
      if (yPos < (0 + BallSpeed)) {
B+~t[$^Z7m O          yDir = "down";!d;w*a-N&Aa
         }
ffSr*Ha       }
rF&}(E3Q)l    if (xDir == "right") {XNdW!}
      xPos = xPos + BallSpeed;5y+F ye6@R@8]
      }iQ s-ak0].D
   else if (xDir == "left") {
F$tw,d#]%lU~ `       xPos = xPos - BallSpeed;
R'? T)W*l8^'Z!\       }&|-W#M4\6nNC6po
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   else {
ZA/K-d j       xPos = xPos;
dC8}T&sTi       }
3y3BQ2c.v|e    if (yDir == "down") {
[;B5?#L9K*b4]3C       yPos = yPos + BallSpeed;
:z8p4Z,B0XsZ/Ve       }|3f9Z+E n~$Z
   else if (yDir == "up") {
[&];_mZVQZp       yPos = yPos - BallSpeed;
}4e?Hzm)Tu+C       }
`*jF,g r'dl:N6A-FO    else {~dT^0R9])z
      yPos = yPos;e{0Bt*l'aR,MD
      }3g NKw T \(Z
   }
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function hidetext(){5U@iA)jEL
if (document.all)
EH^Q4H|#S V supertext.style.visibility="hidden"c2h4]a|3lV8\ R(t
else if (document.layers)
&U"v%?8gQ;K?+m document.supertext.visibility="hide"A q.UF+m+\$KC0}
clearTimeout(animatetext)
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if (document.all||document.layers){6mm%D`9_ H?b AVY
document.write('<span id="supertext"><nobr>'+thecontent+'</nobr></span>')L8vP8aHl0^vL
window.onload = initializeBall;"IJ@%s7?$z/w](HE
window.onresize = new Function("window.location.reload()");1\bPFO1Q
}RF:k
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</script>

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