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POJavaScript timers - clearing, setting new, cycling through divs
 

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  1. POJavaScript timers - clearing, setting new, cycling through divs
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    <p>I have some JavaScript that cycles through n div tags, displaying only one at a time, and changes every 10s. This is working. But I also have next and previous buttons. They seem to be skipping one div when I click next or previous. </p> <p>Can someone help?</p> <p>Any suggestions on a better way to do this is also welcome. I'm new to jQuery so I know some improvements I'd like to do anyway. Thanks!!!</p> <pre><code>jQuery(document).ready(function () { var counter = 1; var delay = 3000; //10 seconds = 10000 var lastItem = jQuery('table[id^=featuredNo]').length - 1; var previous = 0; var timerID; //argument is increment //false is decrement function updateCounter(increment) { if (increment) { counter = (counter &gt;= lastItem) ? 0 : counter + 1; previous = (previous &gt;= lastItem) ? 0 : previous + 1; } else { counter = (counter &lt;= 0) ? lastItem : counter - 1; previous = (previous &lt;= 0) ? lastItem : previous - 1; } } function displayNext() { //alert("testt" + counter); //hide everything but current jQuery("table[id^=featuredNo]").hide(); jQuery("#featuredNo" + counter).show(); //incrememnt the counter, so next time we show the next one updateCounter(true); }; //set click handlers for previous jQuery('a[id^=featuredPrevious]').click(function () { clearInterval(timerID); updateCounter(false); displayNext(); timerID = setInterval(displayNext, delay); }); //set click handlers for next jQuery('a[id^=featuredNext]').click(function () { clearInterval(timerID); updateCounter(true); displayNext(); timerID = setInterval(displayNext, delay); }); //start interval timerID = setInterval(displayNext, delay); }); </code></pre>
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