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    <p>Not to bash the code you were provided... but there is likely a much cleaner way to implement this. (code untested)</p> <pre><code>var attachEvento = function(node, event, listener, useCapture) { // Method for FF, Opera, Chrome, Safari if (window.addEventListener ) { node.addEventListener(event, listener, useCapture || false); } // IE has its own method else { node.attachEvent('on'+event, listener); } }; var selectLists = ['temas_conferencias','temas_cursos','temas_provas','temas_visitas','temas_ciencias','temas_dancas','temas_exposicoes','temas_multi','temas_musica','temas_teatro','temas_cultura','temas_desporto','temas_todos']; var selectHandler = function(){ var value = this.value; var select; for(var i=0,sLen=selectLists.length;i&lt;sLen;i++){ select = document.getElementById(selectLists[i]); if(value == (i+1)){ select.style.display = 'block'; } else { select.style.display = 'none'; } } }; attachEvento(window, "load", function() { // Use the onchange and onkeypress events to detect when the // value of main_select has changed attachEvento(main_select, "change", selectHandler); attachEvento(main_select, "keypress", selectHandler); }); </code></pre> <p>Essentially it does this.</p> <ol> <li><p>It registers an event handler "selectHandler" for the onchange or onkeypress events on the main select list.</p></li> <li><p>To minimized the code, I've put the IDs of the "other" select lists into an array called "selectLists"</p></li> <li><p>When the selectHandler is triggered, it simply checks the value of the main select, then iterates over the other selects in the "selectLists" array and sets the display to "none" - unless it matches the main select value, in which case it displays it.</p></li> </ol>
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    1. POProblem with hide/show select box in IE7/8
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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