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POCall javascript function without inline event
 

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    <p>I am trying to highlight cells with user preferred colors. A user will select a cell and drag mouse to select multiple cells that they want to color with the selected color. How can I trigger the javascript function that lives in a separate file (i know I have to include the file to html file, I have done that already) when user click and drag the mouse without using inline event handlers.</p> <p>The code is there to drag and select but I would like to call this function when user click and drag cells. Before I was using google.setOnLoadCallBack to call this function, but that would call it only once. I would like user to have multiple selections. I hope I made sense.</p> <p><strong>HTML</strong></p> <pre><code>&lt;section id="importance"&gt; &lt;label class="green"&gt;Green&lt;/label&gt; &lt;input type="radio" name="importance" value="green"&gt; &lt;label class="yellow"&gt;Yellow&lt;/label&gt; &lt;input type="radio" name="importance" value="yellow"&gt; &lt;label class="orange"&gt;Orange&lt;/label&gt; &lt;input type="radio" name="importance" value="orange"&gt; &lt;label class="red"&gt;Red&lt;/label&gt; &lt;input type="radio" name="importance" value="red"&gt; &lt;/section&gt; &lt;table cellpadding="0" cellspacing="0" id="our_table"&gt; &lt;tr&gt; &lt;td&gt;a&lt;/td&gt; &lt;td&gt;b&lt;/td&gt; &lt;td&gt;c&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;d&lt;/td&gt; &lt;td&gt;e&lt;/td&gt; &lt;td&gt;f&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;g&lt;/td&gt; &lt;td&gt;h&lt;/td&gt; &lt;td&gt;i&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </code></pre> <p><strong>Javascript</strong></p> <pre><code>function select_multiple() { var isMouseDown = false; // id for all the cells that were selected at the same time var colorGroupId = Math.floor(Math.random() * 1000); var highlight = find_importance_color(); $("#our_table td") .mousedown(function () { isMouseDown = true; $(this).toggleClass(highlight); $(this).attr("data-highlightedId", colorGroupId); return false; // prevent text selection }) .mouseover(function () { if (isMouseDown) { $(this).addClass(highlight); } }); $("#our_table td") .mouseup(function (event) { isMouseDown = false; // time_importance(event); }); } function find_importance_color() { return $('#importance input[name=importance]:checked').val(); } </code></pre> <p><strong>CSS</strong></p> <pre><code>.green { background-color: green; } .yellow { background-color: yellow; } .orange { background-color: orange; } .red { background-color: red; } table td { width:100px; height:100px; text-align:center; vertical-align:middle; background-color:#ccc; border:1px solid #fff; } </code></pre>
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    1. USSherCoder
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    1. COWhat were you doing before? Can u use something like document onload
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      1. USIanO.S.
    2. CO@IanO.S. as I mentioned in the original post I was using `google.setOnLoadCallBack`, but that would only let the function run one time, which means the color id that I want to generate every time they select box is the same, but I want it to be different
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      1. USSherCoder
    3. COMove the color ID outside the function into a global variable, and provide a way to set it.
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      1. USBarmar
 

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