JQuery Gallery

Hello JQuery users!
I have a big problem regarding a script I'm modifying is for a web gallery so long the script work perfectly but everything is triggered by pressing a button as you can see, but I want to trigger the script without having to press the button so what I want is to lead the images and start the gallery without the help of a button...
any ideas? Thanks in advance
here is the script (ignore that I have multiple buttons, in this end just pretend I have only one) Also I attach the html with the code too if you want to see the rest

<!-- The JavaScript -->
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">
$(function() {
/**
* navR,navL are flags for controlling the albums navigation
* first gives us the position of the album on the left
* positions are the left positions for each of the 5 albums displayed at a time
*/
var navR,navL = false;
var first = 1;
var positions = {
'0' : 340,
'1' : 170,
'2' : 340,
'3' : 510,
'4' : 680
}
var $ps_albums = $('#ps_albums');
/**
* number of albums available
*/
var elems = $ps_albums.children().length;
var $ps_slider = $('#ps_slider');

/**
* let's position all the albums on the right side of the window
*/
var hiddenRight = $(window).width() - $ps_albums.offset().left;
$ps_albums.children('div').css('left',hiddenRight + 'px');

/**
* move the first 5 albums to the viewport
*/
$ps_albums.children('div:lt(5)').each(
function(i){
var $elem = $(this);
$elem.animate({'left': positions + 'px','opacity':1},800,function(){
if(elems > 5)
enableNavRight();
});
}
);

/**
* next album
*/
$ps_slider.find('.next').bind('click',function(){
if(!$ps_albums.children('div:nth-child('+parseInt(first+5)+')').length || !navR) return;
disableNavRight();
disableNavLeft();
moveRight();
});

/**
* we move the first album (the one on the left) to the left side of the window
* the next 4 albums slide one position, and finally the next one in the list
* slides in, to fill the space of the first one
*/
function moveRight () {
var hiddenLeft = $ps_albums.offset().left + 163;

var cnt = 0;
$ps_albums.children('div:nth-child('+first+')').animate({'left': - hiddenLeft + 'px','opacity':0},500,function(){
var $this = $(this);
$ps_albums.children('div').slice(first,parseInt(first+4)).each(
function(i){
var $elem = $(this);
$elem.animate({'left': positions + 'px'},800,function(){
++cnt;
if(cnt == 4){
$ps_albums.children('div:nth-child('+parseInt(first+5)+')').animate({'left': positions[cnt] + 'px','opacity':1},500,function(){
//$this.hide();
++first;
if(parseInt(first + 4) < elems)
enableNavRight();
enableNavLeft();
});
}
});
}
);
});
}

/**
* previous album
*/
$ps_slider.find('.prev').bind('click',function(){
if(first==1 || !navL) return;
disableNavRight();
disableNavLeft();
moveLeft();
});

/**
* we move the last album (the one on the right) to the right side of the window
* the previous 4 albums slide one position, and finally the previous one in the list
* slides in, to fill the space of the last one
*/
function moveLeft () {
var hiddenRight = $(window).width() - $ps_albums.offset().left;

var cnt = 0;
var last= first+4;
$ps_albums.children('div:nth-child('+last+')').animate({'left': hiddenRight + 'px','opacity':0},500,function(){
var $this = $(this);
$ps_albums.children('div').slice(parseInt(last-5),parseInt(last-1)).each(
function(i){
var $elem = $(this);
$elem.animate({'left': positions[i+1] + 'px'},800,function(){
++cnt;
if(cnt == 4){
$ps_albums.children('div:nth-child('+parseInt(last-5)+')').animate({'left': positions[0] + 'px','opacity':1},500,function(){
//$this.hide();
--first;
enableNavRight();
if(first > 1)
enableNavLeft();
});
}
});
}
);
});
}

/**
* disable or enable albums navigation
*/
function disableNavRight () {
navR = false;
$ps_slider.find('.next').addClass('disabled');
}
function disableNavLeft () {
navL = false;
$ps_slider.find('.prev').addClass('disabled');
}
function enableNavRight () {
navR = true;
$ps_slider.find('.next').removeClass('disabled');
}
function enableNavLeft () {
navL = true;
$ps_slider.find('.prev').removeClass('disabled');
}

var $ps_container = $('#ps_container');
var $ps_overlay = $('#ps_overlay');
var $ps_close = $('#ps_close');
/**
* when we click on an album,
* we load with AJAX the list of pictures for that album.
* we randomly rotate them except the last one, which is
* the one the User sees first. We also resize and center each image.
*/
$ps_albums.children('div').bind('click',function(){
var $elem = $(this);
var album_name = 'album' + parseInt($elem.index() + 6);
var $loading = $('<div />',{className:'loading'});
$elem.append($loading);
$ps_container.find('img').remove();
$.get('photostack.php', {album_name:album_name} , function(data) {
var items_count = data.length;
for(var i = 0; i < items_count; ++i){
var item_source = data;
var cnt = 0;
$('<img />').load(function(){
var $image = $(this);
++cnt;
resizeCenterImage($image);
$ps_container.append($image);
var r = Math.floor(Math.random()*41)-20;
if(cnt < items_count){
$image.css({
'-moz-transform' :'rotate('+r+'deg)',
'-webkit-transform' :'rotate('+r+'deg)',
'transform' :'rotate('+r+'deg)'
});
}
if(cnt == items_count){
$loading.remove();
$ps_container.show();
$ps_close.show();
$ps_overlay.show();
}
}).attr('src',item_source);
}
},'json');
});

/**
* when hovering each one of the images,
* we show the button to navigate through them
*/
$ps_container.live('mouseenter',function(){
$('#ps_next_photo').show();
$('#ps_prev_photo').show();
}).live('mouseleave',function(){
$('#ps_next_photo').hide();
$('#ps_prev_photo').hide();
});

/**
* navigate through the images:
* the last one (the visible one) becomes the first one.
* we also rotate 0 degrees the new visible picture
*/
$('#ps_next_photo').bind('click',function(){
var $current = $ps_container.find('img:last');
var r = Math.floor(Math.random()*41)-20;

var currentPositions = {
marginLeft : $current.css('margin-left'),
marginTop : $current.css('margin-top')
}
var $new_current = $current.prev();

$current.animate({
'marginLeft':'250px',
'marginTop':'-385px'
},250,function(){
$(this).insertBefore($ps_container.find('img:first'))
.css({
'-moz-transform' :'rotate('+r+'deg)',
'-webkit-transform' :'rotate('+r+'deg)',
'transform' :'rotate('+r+'deg)'
})
.animate({
'marginLeft':currentPositions.marginLeft,
'marginTop' :currentPositions.marginTop
},250,function(){
$new_current.css({
'-moz-transform' :'rotate(0deg)',
'-webkit-transform' :'rotate(0deg)',
'transform' :'rotate(0deg)'
});
});
});
});

$('#ps_prev_photo').bind('click',function(){
var $current = $ps_container.find('img:first');
var r = Math.floor(Math.random()*41)-20;

var currentPositions = {
marginLeft : $current.css('margin-left'),
marginTop : $current.css('margin-top')
}
var $new_current = $current.next();

$current.animate({
'marginLeft':'250px',
'marginTop':'-385px'
},250,function(){
$(this).insertAfter($ps_container.find('img:last'))
.css({
'-moz-transform' :'rotate('+r+'deg)',
'-webkit-transform' :'rotate('+r+'deg)',
'transform' :'rotate('+r+'deg)'
})
.animate({
'marginLeft':currentPositions.marginLeft,
'marginTop' :currentPositions.marginTop
},250,function(){
$new_current.css({
'-moz-transform' :'rotate(0deg)',
'-webkit-transform' :'rotate(0deg)',
'transform' :'rotate(0deg)'
});
});
});
});

/**
* close the images view, and go back to albums
*/
$('#ps_close').bind('click',function(){
$ps_container.hide();
$ps_close.hide();
$ps_overlay.fadeOut(400);
});

/**
* resize and center the images
*/
function resizeCenterImage($image){
var theImage = new Image();
theImage.src = $image.attr("src");
var imgwidth = theImage.width;
var imgheight = theImage.height;

var containerwidth = 600;
var containerheight = 480;

if(imgwidth > containerwidth){
var newwidth = containerwidth;
var ratio = imgwidth / containerwidth;
var newheight = imgheight / ratio;
if(newheight > containerheight){
var newnewheight = containerheight;
var newratio = newheight/containerheight;
var newnewwidth =newwidth/newratio;
theImage.width = newnewwidth;
theImage.height= newnewheight;
}
else{
theImage.width = newwidth;
theImage.height= newheight;
}
}
else if(imgheight > containerheight){
var newheight = containerheight;
var ratio = imgheight / containerheight;
var newwidth = imgwidth / ratio;
if(newwidth > containerwidth){
var newnewwidth = containerwidth;
var newratio = newwidth/containerwidth;
var newnewheight =newheight/newratio;
theImage.height = newnewheight;
theImage.width= newnewwidth;
}
else{
theImage.width = newwidth;
theImage.height= newheight;
}
}
$image.css({
'width' :theImage.width,
'height' :theImage.height,
'margin-top' :-(theImage.height/2)-10+'px',
'margin-left' :-(theImage.width/2)-10+'px'
});
}
});
</script>