/*******************************************************************************************
To use one or more vslider(s) on your page:
(1) Put this script tag in the document HEAD:
(2) Somewhere in the BODY, use script create the vslider(s) you need and write
them to the page:
(3) In the onload attribute of the BODY tag, call init_vsliders():
*******************************************************************************************/
function vslider(id, aboutPage)
{
// stuff you might want to change after instantiating a vslider
this.offsetY = 10; // how far to stay from the top of the screen
this.initialY = 185; // initial y position
this.initialX = 18; // initial x position
this.width = 157; // width
if (aboutPage) this.content = '';
else this.content = '';
// stuff you should never change
this.id = id;
vslider_collection[vslider_collection.length] = this;
}
function write_vsliders()
{
for (var i = 0; i < vslider_collection.length; ++i)
{
var s = vslider_collection[i];
if (IE || NS6)
document.write('');
if (NS4)
document.write('');
document.write(s.content);
if (IE || NS6) document.write('
');
if (NS4) document.write('');
s.lastY = 0;
}
}
function init_vsliders()
{
for (var i = 0; i < vslider_collection.length; ++i)
{
var s = vslider_collection[i];
if (NS6 || IE)
{
s.style = document.getElementById(s.id).style;
s.style.visibility = 'visible';
}
else if (NS4)
{
s.style = document.layers[s.id];
s.style.visibility = "show";
}
}
if (!NS4) move_vsliders();
}
function move_vsliders()
{
var moved = true;
for (var i = 0; i < vslider_collection.length; ++i)
{
var s = vslider_collection[i];
if (NS4 || NS6) s.winY = window.pageYOffset;
else if (IE) s.winY = document.body.scrollTop;
else return;
if (s.winY != s.lastY && s.winY > s.initialY - s.offsetY)
s.smooth = vslider_speed * (s.winY - s.lastY - s.initialY + s.offsetY);
else if (s.initialY - s.offsetY + s.lastY > s.initialY - s.offsetY)
s.smooth = vslider_speed * (s.winY - s.lastY - (s.initialY - (s.initialY - s.winY)));
else s.smooth = 0;
if (s.smooth > 0) s.smooth = Math.ceil(s.smooth);
else s.smooth = Math.floor(s.smooth);
if (s.smooth == 0) moved = false;
s.style.top = parseInt(s.style.top) + s.smooth;
s.lastY += s.smooth;
}
setTimeout('move_vsliders()', moved ? 1 : 500)
}
IE = (document.all);
NS4 = (navigator.appName == "Netscape" && navigator.appVersion.charAt(0) == "4");
NS6 = (document.getElementById && !document.all);
vslider_speed = .1;
if (NS6) vslider_speed *= 3;
vslider_collection = new Array();
