Question

I am having a bug with my custom slider script. When I am on the page everything goes smoothly, but when I open another tab and browse for a minute or so, and than comeback to my page my script goes crazy… Script is very straightforward.

Here is Jsfiddle – There are no images in the slider and that is why it does not look nice as it should..

function show12(evt){
$('#number_1').unbind();
$('#number_2').unbind();
// First slide
$('#number_1').css({
    position: 'absolute',
    top: '9px',
    left: '10px',
}).effect('slide', {
    direction: 'left',
    mode: 'show'
}, 'slow');

$('#slide_1').css({
    position: 'absolute',
    top: '9px',
    left: '47px',
}).effect('slide', {
    direction: 'left',
    mode: 'show'
}, 'slow');

// Second slide
$('#number_2').css({
    position: 'absolute',
    top: '9px',
    left: '445px',
}).effect('slide', {
    direction: 'left',
    mode: 'show'
}, 'slow');

$('#slide_2').css({
    position: 'absolute',
    top: '9px',
    left: '481px',
}).effect('slide', {
    direction: 'left',
    mode: 'show'
}, 'slow');

// Third slide  
$('#number_3').css({
    position: 'absolute',
    top: '9px',
    left: '879px'
}).effect('slide', {
    direction: 'left',
    mode: 'show'
}, 'slow');

$('#slide_3').css({
    display: 'none'
});

// Forth slide  
$('#number_4').css({
    position: 'absolute',
    top: '9px',
    left: '917px'
}).effect('slide', {
    direction: 'left',
    mode: 'show'
}, 'slow');

$('#slide_4').css({
    display: 'none'
});

$('#number_1, #number_2').hover(
    function(){window.clearInterval(timer); i=1;}
);

$('#number_1, #number_2').mouseout(
    function(){
        $(this).unbind();
        timer = window.setInterval(function(){slideLogos();}, 4000); i=1;
    }
);


$('#number_3').hover(function(){$(this).unbind(); i++; show34();});
$('#number_4').hover(function(){$(this).unbind(); i++; show34();});

}

function show34(){
$('#number_3').unbind();
$('#number_4').unbind();

    // First slide
$('#number_1').css({
    position: 'absolute',
    top: '9px',
    left: '10px',
}).effect('slide', {
    direction: 'left',
    mode: 'show'
}, 'slow');

$('#slide_1').css({
    display: 'none'
});

// Second slide
$('#number_2').css({
    position: 'absolute',
    top: '9px',
    left: '48px',
}).effect('slide', {
    direction: 'left',
    mode: 'show'
}, 'slow');

$('#slide_2').css({
    display: 'none'
});

// Third slide  
$('#number_3').css({
    position: 'absolute',
    top: '9px',
    left: '86px'
}).effect('slide', {
    direction: 'right',
    mode: 'show'
}, 'slow');

$('#slide_3').css({
    display: 'inline-block',
    position: 'absolute',
    top: '9px',
    left: '123px',
}).effect('slide', {
    direction: 'right',
    mode: 'show'
}, 'slow');

// Forth slide
$('#number_4').css({
    position: 'absolute',
    top: '9px',
    left: '521px'
}).effect('slide', {
    direction: 'right',
    mode: 'show'
}, 'slow');

$('#slide_4').css({
    position: 'absolute',
    top: '9px',
    left: '558px',
}).effect('slide', {
    direction: 'right',
    mode: 'show'
}, 'slow');

$('#number_3, #number_4').hover(
    function(){window.clearInterval(timer); i=0;}
);

$('#number_3, #number_4').mouseout(
    function(){
        $(this).unbind();
        timer = window.setInterval(function(){slideLogos();}, 4000); i=0;
    }
);

$('#number_1').hover(function(){$(this).unbind(); i++; show12();});
$('#number_2').hover(function(){$(this).unbind(); i++; show12();});
}

function slideLogos(){


switch(i%2){
    case 0:
        show12();
        break;
    case 1:
        show34();
        break;
}
i++;
}

var i = 1;
var timer;

$('document').ready(function(){

show12();

timer = setInterval(function(){slideLogos();}, 4000);

});

Number_n – is number always shown in slider, Slide_n – is a slide that is being shown/hidden, sorry about that 🙂

Answer 1

I once ran into this same problem. I wouldn’t say the script was going crazy as much as the animation appeared to be cached until I returned to the page. I don’t know if this happens for you, but for me the sliding eventually slowed back down to the normal speed. I also noticed that the same thing happened across all browsers. So I figured it had to be caused by jQuery. Sure enough the problem disappeared by reverting to an older version of jQuery (1.5 instead of 1.6, if I remember correctly).