状态栏里的动态欢迎语

&lt;script type = "text/javascript"&gt;
var POSITION = 100;
var DELAY = 5;
var MESSAGE = "欢迎光临! Welcome to WWW.HELPOR.NET ";
var scroll = new statusMessageObject();

 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;
}

function scroller()
{
    for (scroll.i = 0; scroll.i &lt; scroll.pos; scroll.i++)
    {
        scroll.out += " ";
    }
    if (scroll.pos &gt;= 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 &lt; -(scroll.msg.length))
    {
        scroll.reset();
    }
    setTimeout('scroller()', scroll.delay);
}

function snapIn(jumpSpaces, position)
{
    var msg = scroll.msg;
    var out = "";
    for (var i = 0; i &lt; position; i++)
    {
        out += msg.charAt(i);
    }
    for (i = 1; i &lt; jumpSpaces; i++)
    {
        out += " ";
    }
    out += msg.charAt(position);
    window.status = out;
    if (jumpSpaces &lt;= 1)
    {
        position++;
        if (msg.charAt(position) == ' ')
        {
            position++;
        }
        jumpSpaces = 100 - position;
    }
    else if (jumpSpaces &gt; 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);
&lt;/script&gt;

var POSITION = 100;

var DELAY = 5;

var MESSAGE = "欢迎光临! Welcome to WWW.HELPOR.NET ";

var scroll = new statusMessageObject();

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;

}

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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