Question

This error is only present in Internet explorer but works in Mozilla so far. Basically when someone selects an adtype on a drop down it should reveal the appropriate drop down. I will post the related code.

<script language="javascript">
    /* Hide and show appropriate drop down menu */
    var subs_array = new Array("pricefreq","pricetype"); // The id's of the hidden divs
    function displayOptions(the_sub){
        for (i=0;i<subs_array.length;i++){
            var my_sub = document.getElementById(subs_array[i]);
            my_sub.style.display = "none";
        }
        document.getElementById(the_sub).style.display = "inline-block";
    }


  </script>

                <select name="adtype" id="adtype" tabindex="1">
                    <option value="unselected">Please Select...</option>
                    <option value="to_buy" onmousedown="displayOptions('pricetype')">For Sale</option>
                    <option value="to_rent" onmousedown="displayOptions('pricefreq')">For Rent</option>
                </select>

                <select name="pricetype" id="pricetype" tabindex="8">
                    <option value="unselected">Please Select...</option>
                    <option value="Starting at">Starting At</option>
                    <option value="Fixed Price">Fixed Price</option>
                    <option value="Offers over">Offers Over</option>
                </select>

                <select name="pricefreq" id="pricefreq" tabindex="9">
                    <option value="unselected">Please Select...</option>
                    <option value="Per Week">Per Week</option>
                    <option value="Per Month">Per Month</option>
                    <option value="4 Weekly">4 Weekly</option>
                </select>

Answer 1

I don’t think mouse events work on option tags in IE. You could apply an onchange event to the select element and feed the value onchange="displayOptions(this.value)" and then either translate the value in JS, or change the value of the option to ID that should show.

Example: http://jsfiddle.net/dxhBs/1/