我在Chrome版本50.0.2661.94 m中遇到了mouseover/mousemoove事件的问题。Mozilla也能正常工作。

要求：在鼠标悬停在下拉菜单（选项标签）上时，我需要显示每个选项的描述。

代码：

HTML:

<td>
    <select class="div_taskDesc" name="selectedindexid'+rowcounter+'" OnChange="SetDF('''+rowcounter+''');" onmousemove="getOptionDesc(this,event);"><?echo $Options_select;?>
    </select>
</td>

JavaScript:

function getOptionDesc(o, e) { 
    var selected=o.options[o.selectedIndex].text;
    var selecteddesc=o.options[o.selectedIndex].label;
    var x = e.clientX;
    var y = e.clientY;
    var coor = "Coordinates: (" + x + "," + y + ")";
    console.log(coor); 
    if (selected!=""){ 
         //Code to display description
    }
    else{
         //code to hide description
    }
}