function anim(left,top,width,height,img,imgwidth,imgheight,dx,dy,dt,n) {
// width, height - x, y sizes for animation viewport
// img - image containing frames animation
// imgwidth, imgheight - sizes of image
// dx, dy - distance to scroll per frame of animation
// dt - time to view each frame
// n - times to loop through animation
this.left = left;
this.top = top;
this.width = width;
this.height = height;
this.img = new Image();
this.img.src = img;
this.imgwidth = imgwidth;
this.imgheight = imgheight;
this.dx = dx;
this.dy = dy;
this.dt = dt;
this.n = n;
this.id = 'clipanim'+anim.counter++;
document.write('\n');
anim[this.id] = this;
}
anim.counter = 0;
anim.prototype.output = function() {
document.write('
|
|
\n');
if (document[this.id+'a']) { /* nn specific */
var my = document[this.id+'a'].clip;
my.x = 0;
my.y = 0;
my.width = this.width;
my.height = this.height;
return true;
} else if (document.all[this.id+'a']) {
return true;
} else {
return false;
}
}
anim.prototype.scroll = function() {
if (document[this.id+'a']) { /* nn specific */
var my = document[this.id+'a'].document[this.id+'b'];
my.left = Math.round((my.left+this.dx-this.imgwidth)%this.imgwidth);
my.top = Math.round((my.top+this.dy-this.imgheight)%this.imgheight);
} else if (document.all[this.id+'a']) { /* ie specific */
var my = document.all[this.id+'a'].document.all[this.id+'b'].style;
my.pixelLeft = Math.round((my.pixelLeft+this.dx-this.imgwidth)%this.imgwidth);
my.pixelTop = Math.round((my.pixelTop+this.dy-this.imgheight)%this.imgheight);
}
}
anim.prototype.start = function() {
if (document[this.id+'a']) { /* nn specific */
var my = document[this.id+'a'].clip;
my.x = 0;
my.y = 0;
my.width = this.width;
my.height = this.height;
}
this.timer = setInterval('anim.'+this.id+'.scroll()', this.dt);
}
anim.prototype.stop = function() {
if (this.timer) clearInterval(this.timer);
this.timer = false;
}
anim.prototype.rewind = function() {
this.stop();
if (document[this.id+'a']) { /* nn specific */
var my = document[this.id+'a'].document[this.id+'b'];
my.left = 0;
my.top = 0;
} else if (document.all[this.id+'a']) { /* ie specific */
var my = document.all[this.id+'a'].document.all[this.id+'b'].style;
my.pixelLeft = 0;
my.pixelTop = 0;
}
}
anim.prototype.moveto = function(left,top) {
if (document[this.id+'a']) { /* nn specific */
var my = document[this.id+'a'];
my.left = left;
my.top = top;
} else if (document.all[this.id+'a']) { /* ie specific */
var my = document.all[this.id+'a'].style;
my.pixelLeft = left;
my.pixelTop = top;
}
}