Animation: Jquery on start?

i have this script in my page:

<script type="text/javascript"> 
    var scrollSpeed = 70;      // Speed in milliseconds
    var step = 1;              // How many pixels 开发者_开发技巧to move per step
    var current = 0;           // The current pixel row
    var imageHeight = 2580;    // Background image height
    var headerHeight = 300;    // How tall the header is.

    //The pixel row where to start a new loop
    var restartPosition = -(imageHeight - headerHeight);

    function scrollBg() {
        //Go to next pixel row.
        current -= step;
        //If at the end of the image, then go to the top.
        if (current == restartPosition){
            current = 0;
        }
        //Set the CSS of the header.
        $('#wrapper1').css("background-position","0 "+current+"px");
    }

    //Calls the scrolling function repeatedly
    var init = setInterval("scrollBg()", scrollSpeed);   
</script>

the background is moving, how can i set an stoptimer, that the script runs after 10 seconds? i mean that the anmiation starts after 10 seconds.

Thanks Carsten

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You can use the setTimeout() function, like this: setTimeout('var init = setInterval("scrollBg()", scrollSpeed);', 10000);.

The 10000 is the time in miliseconds it should wait before executing the expression, which is 10 seconds.