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  1. #1
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    change javascript base on database's record

    Hi,

    I have a javascript plugin, I want to change the config base on the number of records database returns. how could I do this.

  2. #2
    Programming Since 1978 silver trophybronze trophy felgall's Avatar
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    Without seeing the script or at least knowing which one you are using there is nothing to tell us what you are referring to.
    Stephen J Chapman

    javascriptexample.net, Book Reviews, follow me on Twitter
    HTML Help, CSS Help, JavaScript Help, PHP/mySQL Help, blog
    <input name="html5" type="text" required pattern="^$">

  3. #3
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    My bad,

    So, in the config script in the head of document, visible is 3 at the moment. In the <ul> if there are 2 images only, the visible should be 2, if there is 1 image, the visible should be 1.

    Code HTML4Strict:
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
    <head>
    <link type="text/css" href="css/jcarousel.css" rel="stylesheet" />
    <script type="text/javascript" src="js/jquery-1.3.2.min.js"></script>
    <script type="text/javascript" src="js/jcarousel.js"></script>
    <script type="text/javascript" language="javascript">
    $(function() {
        $(".anyclass").jCarouselLite({
    		visible:3
        });
    });
    </script>
     
    </head>
    <body>
    <div class="anyclass">
    	<div class="right_opaque"><div class="next"></div></div>
    	<div class="left_opaque"><div class="prev"></div></div>
    	<ul>
    		<li><img src="img/Boudicca_3060_AD_Hi-Res.jpg" alt="" width="608" height="408" ></li>
    		<li><img src="img/thumbnail.jpg" alt="" width="608" height="408" ></li>
    		<li><img src="img/green_main.jpg" alt="" width="608" height="408" ></li>
    	</ul>
    </div>
    </body>
    </html>

    file jcarousel.js
    Code JavaScript:
    (function($) {                                          // Compliant with jquery.noConflict()
    $.fn.jCarouselLite = function(o) {
        o = $.extend({
            btnPrev: null,
            btnNext: null,
            btnGo: null,
            mouseWheel: false,
            auto: null ,
     
            speed: 3000,
            easing: null,
     
            vertical: false,
            circular: true,
            visible: 3,
            start: 0,
            scroll: 1,
     
            beforeStart: null,
            afterEnd: null
        }, o || {});
     
        return this.each(function() {                           // Returns the element collection. Chainable.
     
            var running = false, animCss=o.vertical?"top":"left", sizeCss=o.vertical?"height":"width";
            var div = $(this), ul = $("ul", div), tLi = $("li", ul), tl = tLi.size(), v = o.visible;
     
     
            if(o.circular) {
                ul.prepend(tLi.slice(tl-v-1+1).clone())
                  .append(tLi.slice(0,v).clone());
                o.start += v;
            }
     
            var li = $("li", ul), itemLength = li.size(), curr = o.start;
            div.css("visibility", "visible");
     
            li.css({overflow: "hidden", float: o.vertical ? "none" : "left"});
            ul.css({margin: "0", padding: "0", position: "relative", "list-style-type": "none", "z-index": "1"});
            div.css({overflow: "hidden", position: "relative", "z-index": "2", left: "0px"});
     
            var liSize = o.vertical ? height(li) : width(li);   // Full li size(incl margin)-Used for animation
            var ulSize = liSize * itemLength;                   // size of full ul(total length, not just for the visible items)
            var divSize = liSize * v;                           // size of entire div(total length for just the visible items)
     
            li.css({width: li.width(), height: li.height()});
            ul.css(sizeCss, ulSize+"px").css(animCss, -(curr*liSize));
     
            div.css(sizeCss, divSize+"px");                     // Width of the DIV. length of visible images
     
            if(o.btnPrev)
                $(o.btnPrev).click(function() {
                    return go(curr-o.scroll);
                });
     
            if(o.btnNext)
                $(o.btnNext).click(function() {
                    return go(curr+o.scroll);
                });
     
            if(o.btnGo)
                $.each(o.btnGo, function(i, val) {
                    $(val).click(function() {
                        return go(o.circular ? o.visible+i : i);
                    });
                });
     
            if(o.mouseWheel && div.mousewheel)
                div.mousewheel(function(e, d) {
                    return d>0 ? go(curr-o.scroll) : go(curr+o.scroll);
                });
     
            if(o.auto)
                setInterval(function() {
                    go(curr+o.scroll);
                }, o.auto+o.speed);
     
            function vis() {
                return li.slice(curr).slice(0,v);
            };
     
            function go(to) {
                if(!running) {
     
                    if(o.beforeStart)
                        o.beforeStart.call(this, vis());
     
                    if(o.circular) {            // If circular we are in first or last, then goto the other end
                        if(to<=o.start-v-1) {           // If first, then goto last
                            ul.css(animCss, -((itemLength-(v*2))*liSize)+"px");
                            // If "scroll" > 1, then the "to" might not be equal to the condition; it can be lesser depending on the number of elements.
                            curr = to==o.start-v-1 ? itemLength-(v*2)-1 : itemLength-(v*2)-o.scroll;
                        } else if(to>=itemLength-v+1) { // If last, then goto first
                            ul.css(animCss, -( (v) * liSize ) + "px" );
                            // If "scroll" > 1, then the "to" might not be equal to the condition; it can be greater depending on the number of elements.
                            curr = to==itemLength-v+1 ? v+1 : v+o.scroll;
                        } else curr = to;
                    } else {                    // If non-circular and to points to first or last, we just return.
                        if(to<0 || to>itemLength-v) return;
                        else curr = to;
                    }                           // If neither overrides it, the curr will still be "to" and we can proceed.
     
                    running = true;
     
                    ul.animate(
                        animCss == "left" ? { left: -(curr*liSize) } : { top: -(curr*liSize) } , o.speed, o.easing,
                        function() {
                            if(o.afterEnd)
                                o.afterEnd.call(this, vis());
                            running = false;
                        }
                    );
                    // Disable buttons when the carousel reaches the last/first, and enable when not
                    if(!o.circular) {
                        $(o.btnPrev + "," + o.btnNext).removeClass("disabled");
                        $( (curr-o.scroll<0 && o.btnPrev)
                            ||
                           (curr+o.scroll > itemLength-v && o.btnNext)
                            ||
                           []
                         ).addClass("disabled");
                    }
     
                }
                return false;
            };
        });
    };
     
    function css(el, prop) {
        return parseInt($.css(el[0], prop)) || 0;
    };
    function width(el) {
        return  el[0].offsetWidth + css(el, 'marginLeft') + css(el, 'marginRight');
    };
    function height(el) {
        return el[0].offsetHeight + css(el, 'marginTop') + css(el, 'marginBottom');
    };
     
    })(jQuery);


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