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文字快速依次弹出

作者:佚名来源:不详发布时间:2008-5-24 10:19:33

<script language="JavaScript"><!--function statusMessageObject(p,d) {  this.msg = MESSAGE  this.out = " "  this.pos = POSITION  this.delay = DELAY  this.i     = 0  this.reset = clearMessage}function clearMessage() {  this.pos = POSITION}var POSITION = 100var DELAY    = 4 var MESSAGE  = "欢迎来到异阁网，请多提意见。谢谢!   " var scroll = new statusMessageObject()function scroller() {  for (scroll.i = 0; scroll.i < scroll.pos; scroll.i++) {    scroll.out += " "  }  if (scroll.pos >= 0)   scroll.out += scroll.msg  else scroll.out = scroll.msg.substring(-scroll.pos,scroll.msg.length)  window.status = scroll.out  scroll.out = " "  scroll.pos--  if (scroll.pos < -(scroll.msg.length)) {   scroll.reset()  }  setTimeout ('scroller()',scroll.delay)}function snapIn(jumpSpaces,position) {  var msg = scroll.msg  var out = ""  for (var i=0; i<position; i++)     {out += msg.charAt(i)}  for (i=1;i<jumpSpaces;i++)     {out += " "}  out += msg.charAt(position)  window.status = out  if (jumpSpaces <= 1) {    position++    if (msg.charAt(position) == ' ')       {position++ }    jumpSpaces = 100-position  } else if (jumpSpaces >  3)       {jumpSpaces *= .75}  else    {jumpSpaces--}  if (position != msg.length) {    var cmd = "snapIn(" + jumpSpaces + "," + position + ")";    scrollID = window.setTimeout(cmd,scroll.delay);  } else {    window.status=""    jumpSpaces=0    position=0    cmd = "snapIn(" + jumpSpaces + "," + position + ")";    scrollID = window.setTimeout(cmd,scroll.delay);    return false   }  return true}snapIn(100,0);// --></script>

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