JavaScript:
Calculate age from date:
<script language="javascript" type="text/javascript"> function calc(form1) { var bd = form1.dob.value; var re = /^(0?[1-9]|[12][0-9]|3[01])\/(0?[1-9]|1[0-2])\/(19|20)\d{2}$/; if (!re.test(bd)) {alert('Birthday must be dd/mm/ccyy format'); return;} $sd = bd.split("/") var today= new Date(); var birthday= new Date(sd[2],sd[1],sd[0]); var age = today - birthday; form1.age.value=Math.floor(((age/3600)/24)/365.25); } </script>
Copy/Delete items between dropdowns:
function addPlan(q) { selected = new Array(); for (var i = 0; i < list1.options.length; i++) { if (list1.options[i].selected) { selected.push(list1.options[i].value); var newOpt = new Option(list1.options[i].text, list1.options[i].value); var selLength = q.length; q.options[selLength] = newOpt; } } } function removeOldSchool(theSel) { var selIndex = theSel.selectedIndex; if (selIndex != -1) { for (i = theSel.length - 1; i >= 0; i--) { if (theSel.options[i].selected) { theSel.options[i] = null; } } if (theSel.length > 0) { theSel.selectedIndex = selIndex == 0 ? 0 : selIndex - 1; } } }
and the HTML:
<select id="list1" multiple="multiple" size="15"> <option>Choice 1</option> <option>Choice 2</option> <option>Choice 3</option> <option>Choice 4</option> <option>Choice 5</option> </select> <br /> <select id="plan1" multiple="multiple" size="7"></select><br /> <input id="Button5" type="button" value="Add PlanOpt" onclick="addPlan(document.getElementById('plan1'));" /><br /> <input id="Button1" type="button" value="Delete" onclick="removeOldSchool(document.getElementById('plan1'));" />
Sample:
Choice 1
Choice 2
Choice 3
Choice 4
Choice 5