jQuery.fn.prepare_slider = function(){
    var x_pos = 0;
    var li_items_n = 0;
    var right_clicks = 0;
    var left_clicks = 0;
    var li_col = jQuery("#slider_list > li");
    var li_width = li_col.outerWidth(true);
    var viewWindow = Math.round(jQuery('.box-top').width()/li_width);
		
    li_col.each(function(index){
        x_pos += jQuery(this).outerWidth(true);
        li_items_n++;
    })
		
    right_clicks = li_items_n - viewWindow;
    total_clicks = li_items_n - viewWindow;
		
    jQuery('#slider_list').css('position','relative');
    jQuery('#slider_list').css('left','0px');
    jQuery('#slider_list').css('width', x_pos+'px');
		
    var is_playing = false;
    var completed = function() {
        is_playing = false;
    }

    jQuery('#left_but').click( function(){
        cur_offset = jQuery('#slider_list').position().left;
        if (!is_playing){
            if (left_clicks > 0) {
                is_playing = true;
                jQuery('#slider_list').animate({
                    'left': cur_offset + li_width + 'px'
                    }, 700, "linear", completed);
                right_clicks++;
                left_clicks--;
            }
            else {
                is_playing = true;
                jQuery('#slider_list').animate({
                    'left':    -li_width*total_clicks	+ 'px'
                    }, 700, "linear", completed);
                right_clicks = 0;
                left_clicks = total_clicks;
            }
        }
    });

    jQuery('#right_but').click( function(){
        if (!is_playing){
            cur_offset = jQuery('#slider_list').position().left;
            if (right_clicks > 0) {
                is_playing = true;
                jQuery('#slider_list').animate({
                    'left': cur_offset - li_width + 'px'
                    },700, "linear", completed );
                right_clicks--;
                left_clicks++;
            }
            else {
                is_playing = true;
                jQuery('#slider_list').animate({
                    'left':    0	+ 'px'
                },700, "linear", completed );
                left_clicks = 0;
                right_clicks = total_clicks;
            }
        }
    });
		
}

jQuery.fn.over = function(){						
    jQuery(this).hover(
        function () {
            jQuery(this).addClass("over");
        },
        function () {
            jQuery(this).removeClass("over");
        }
        );
}
   
   
function auto_slider(){
    //=======intro (auto slider for all images)================
    var slider_link = jQuery('.slider .box-right');
    var slider_link_index = 1;
    var slider_count = jQuery('#slider_list > li').size();
	
    function slider_intro(){
        if(slider_link_index <= slider_count-2){
            slider_link.trigger('click');
            slider_link_index++;
            setTimeout(function(){
                slider_intro()
                }, 5000); //select change time
        }
    }
    setTimeout(function(){
        slider_intro()
        }, 5000)
//========//intro=======
}