网页之跑马灯文字特效

zw2004

//修改宽度" h; _7 O) o0 c* p; @
var marqueewidth=3008 \7 P- c! i) z% W; L6 ]9 [2 a7 X* ?
//高度
/ _- u, i4 S: P7 m( F8 i" u* N$ Svar marqueeheight=25
3 Q  l$ d8 I1 M, B0 R' g; y//速度(1-10)+ a1 w: k5 n- E+ y1 c
var marqueespeed=3
; d& K% Z4 A* C/ L//背景颜色9 q: {- H. ?6 J2 C& ^# d
var marqueebgcolor="#FFFFFF"
# W1 s. z: @$ @2 }//是否能暂停 (0=no. 1=yes)?
# T. M; s0 I5 }7 ^# @" _5 Z' rvar pauseit=1# h( H/ }9 d5 E

7 m* E2 u5 c( O1 @# W//修改显示内容" Z1 t7 q$ A: I; t3 G) L1 P
var marqueecontent='<nobr><font face="Arial" size=2><a href="http://www.jzzy.com/js.asp">欢迎光临七色风网页家园</a>--这里有从上千个网页特效中精选的300多个实用的特效，另外，为了网友更方便地学习，我们还改写和编写了部分的特效，并作了详细的说明和必要的使用提示!</font></nobr>'
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+ h3 m$ G3 v7 G( x- v7 n2 B7 j////下面不需改变////////////0 `* M5 z2 E$ g
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var copyspeed=marqueespeed
) A" P$ d# A: S$ k9 cvar pausespeed=(pauseit==0)? copyspeed: 0
% Y5 y; B0 ?  r. k" x: G/ Lvar iedom=document.all||document.getElementById) s- l" u3 Q( }  e) Z4 }+ ~0 I
if (iedom), Y5 g( o/ T7 ]) M
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>'). {2 c; [+ E0 T" l6 W
var actualwidth=''
( Q% Q5 d3 R. X0 C: Qvar cross_marquee, ns_marquee
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, D- E$ l2 a1 |& w+ l0 e  efunction populate(){5 ?3 m" B* d( L. D6 f+ k+ K2 Y$ n2 f
if (iedom){
; c: |; {7 Z, Y3 l4 ?0 h( scross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
) w$ f6 t9 c" y: ?, X  p9 _cross_marquee.style.left=marqueewidth+8% w& i* x% e; ^
cross_marquee.innerHTML=marqueecontent
/ S+ w% _5 r1 M( }2 b' Bactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth/ {  j, O4 \/ q5 n4 b3 a2 w8 W/ z" T
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else if (document.layers){
6 {% N1 Z- e" S. |$ S% g8 Pns_marquee=document.ns_marquee.document.ns_marquee2: |" }& P# R) x. F4 C
ns_marquee.left=marqueewidth+8
- a6 r, s" r9 `. c, [5 C1 Ans_marquee.document.write(marqueecontent)
' v( Z$ b8 V( I! A3 H; H$ \ns_marquee.document.close()
8 ^+ e! {- h  c/ ^" r8 }actualwidth=ns_marquee.document.width6 h7 M4 }+ o; s9 P4 W
}
/ Y' R! I& ]( {lefttime=setInterval("scrollmarquee()",20)
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window.onload=populate; e. Q! N* I, Y7 w& `

6 o/ ?& E3 d  K( c* ^function scrollmarquee(){! q  h) W( L4 U4 N0 @" H% u+ \
if (iedom){
! {- J" O) V$ n) o5 G( Xif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
% U4 I  J2 [8 M9 @! R8 q1 Bcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
( V. _0 Z* ~& H/ ~, Ielse
; p7 o5 I" i: ]* C# u" ncross_marquee.style.left=marqueewidth+8' N. Z9 d4 s6 e* L4 ^3 @2 I, k4 d

0 c9 ?% d" I+ E, p) [}
# p, M! J  v" R  \1 P$ S0 pelse if (document.layers){3 X' Z3 A1 N( K
if (ns_marquee.left>(actualwidth*(-1)+8))) t, Z+ }$ Q0 q) Y' u8 B4 v
ns_marquee.left-=copyspeed$ v( S5 v, V, o! Z" x
else
3 P% k3 p7 e$ _; F3 f* A6 ]ns_marquee.left=marqueewidth+8
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if (iedom||document.layers){
+ Y& C2 u/ q$ D. ]0 \9 p8 Xwith (document){
2 {6 u, b5 P: p* \1 r6 m2 xdocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
, r) ~' Y" B5 L' Y: sif (iedom){  U6 |2 f" I% h/ F9 V, x  N
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')! K% G' ^" F6 [+ B, B3 I' v
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
. G! h. K: l; E- k+ ^write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
& F& N( Z9 i8 m$ S$ j: Gwrite('</div>')
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else if (document.layers){
. d5 L5 O. C) N/ Y1 Rwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')8 X+ d. z3 q' D  d, F7 R
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')* y* B. |" u7 O( b, F( O7 J
write('</ilayer>')
. {. x5 K; F; H: {9 A}
1 \" D, t9 |4 I! }document.write('</td></table>')
9 _! E9 y5 l; k) t}
+ h, [- a. T1 M}
% {" ~: n  t! m! |% y. W' x</script>