Guidelines for specifying which element a javascript function should manipulate

Having just started with asp.net and javascript, I have a task to complete in a short time. I feel overwhelmed by all the basics I need to learn before starting. Could anyone point me in the right direction? Thank you in advance!

I need to display several cities on a country map, each with its own unique style defined in a css.

<div class="node">
    <div class="taxonomy">
    </div>
    <div class="content">
        <div id="contact_map" runat="server">
            <ul>
                <li id="city1" onmouseover= "onmouseoveragent(this)"   
                               onmouseout="onmouseoutagent(this)">
                    <a href="someAddress"><span class="hideme">Some City Name</span>
                    </a>
                    <p class="hideme">Some City Name<strong class="tel">0123456789</strong>
                    </p>
                </li>
                <%-- other cities here, with different city name and tel --%>
            </ul>
        </div>
    </div>
</div>

Eventually, I want to be able to create these city items dynamically.

A hint box should appear when hovering over each city. How can these hint boxes be created dynamically and populated with the correct information for each city? I may need to dynamically generate the list of cities as well.

<div id="agentVisit" class="floating-tip-wrapper" style="margin: 0px; padding: 0px; position:    
    absolute; display:none; opacity: 1;">
    <div class="floating-tip" style="margin: 0px;">Some City Name
        <strong class="tel">0123456789</strong>
    </div>
</div>

Below is the JavaScript code for handling mouseover and mouseout events for each city: How can I ensure that the function retrieves the correct agentVisit?

<script language="javascript" type="text/javascript">

    function onmouseoveragent(e) {
        var hint = document.getElementById("agentVisit");
        console.log(hint);
        hint.style.display = 'block';
        hint.style.top = Math.max(e.offsetTop - hint.offsetHeight, 0) + "px";
        hint.style.left = e.offsetLeft + "px";
    };

    function onmouseoutagent(e) {
        var hint = document.getElementById("agentVisit");
        hint.style.display = 'none';
    }

</script>

If anyone could provide guidance or resources on how to approach this task, I would greatly appreciate it. Thank you!

Answer №1

Your approach seems to be unnecessarily complex. By utilizing data attributes in the DOM elements, you can simplify the process and enhance it with tools such as jQueryUI Tooltip.

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