Options in select : Option Select ComboBox : Form Control JAVASCRIPT DHTML TUTORIALS

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Options in select



    
<script>
function function1() {
    var col = document.all.colors.size;
    alert(col+" number of options") 
} 
</script>
<form method="post" action="">
<select id="colors" size="10">
    <option value="white" selected>White</option>
    <option value="cyan">Cyan</option>
    <option value="ivory">Ivory</option>
    <option value="blue">Blue</option>
    <option value="red">Red</option>
    <option value="lightblue">Lightblue</option>
    <option value="beige">Beige</option>
</select>
<input type="button" value="Number of options" onclick="function1();">
</form>