popup display after certain time interval

gistfile1.txt

function call() {
    //popup = window.open('http://www.google.co.in');     
    $("#ouibounce-modal").show();    
    setTimeout(wait, 1000); // closes the pop-up after 8 secs delay
}

function caller(){
	$("#ouibounce-modal").show();    
    setInterval(call, 15000); // opens a pop-up on every 12th second
}
function wait()
{
    $("#ouibounce-modal").hide();  
}

onload=caller();