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POJavascript sliding menus not working
 

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    <p>This javascript sliding menu is NOT working--the only error that debugger gives is that the first IF statement is a block command &amp; should have curly braces, which I don't understand.</p> <p>Does anyone see an obvious error? I'm not sure I'm using 'this' keyword correctly( as well as the variable slideList inside the function showSlide...please help &amp; any feedback on my formatting (white-space) is appreciated as well! </p> <pre><code>window.onload = makeMenus; var currentSlide = null; var timeID = null; var leftPos = 0; function makeMenus() { var slideMenus = new Array(); var allElems = document.getElementsByTagName("*"); for (var i = 0; i &lt; allElems.length; i++) { if (allElems[i].className == "slideMenus") menus.push(allElems[i]); } for (var i = 0; i &lt; slideMenus.length; i++) { slideMenus[i].onclick = showSlide; slideMenus[i].ul.style.left = "0px"; //for each object in slideMenus Array, ref 1st ul element within that object and set the value of the ul elements left style property to 0px } document.getElementById("head").onclick = closeSlide; document.getElementById("main").onclick = closeSlide; } function showSlide() { var slideList = this.id + ".ul[0]"; //stores object ref to the 1st ul element nested within the current object. if (currentSlide !== null) { closeSlide(); } else { closeSlide(); currentSlide = slideList; currentSlide.style.display = "block"; timeID = setInterval("moveSlide()", 1); } } function closeSlide() { if (currentSlide !== null) { clearInterval(timeID); currentSlide.style.left = "0px"; currentSlide.style.display = "none"; currentSlide = null; } } function moveSlide() { if ((leftPos + 5) &lt;= 220) { currentSlide.style.left = leftPos + "px" } else { clearInterval(timeID); leftPos = 0; } } </code></pre>
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    1. COMaybe give a few minutes of your time and read about it, here for example -> http://www.digital-web.com/articles/scope_in_javascript/ . It will help you a lot I think, for this problem, and the next ones. ( copied the link form here -> http://stackoverflow.com/questions/3127429/javascript-this-keyword )
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    2. COthank you Antonis
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