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77 lines
2.3 KiB
77 lines
2.3 KiB
function Qcodo__DateTimePicker_Change(strControlId, objListbox) {
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var objMonth = document.getElementById(strControlId + "_lstMonth");
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var objDay = document.getElementById(strControlId + "_lstDay");
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var objYear = document.getElementById(strControlId + "_lstYear");
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if (objListbox.options[objListbox.selectedIndex].value == "") {
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objMonth.selectedIndex = 0;
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objYear.selectedIndex = 0;
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while(objDay.options.length)
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objDay.options[objDay.options.length - 1] = null;
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objDay.options[0] = new Option("--", "");
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objDay.selectedIndex = 0;
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} else {
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if ((objListbox == objMonth) || ((objListbox == objYear) && (objMonth.options[objMonth.selectedIndex].value == 2))) {
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var intCurrentDay = objDay.options[objDay.selectedIndex].value;
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var intCurrentMaxDay = objDay.options[objDay.options.length - 1].value;
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// Calculate new Max Day
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var intNewMaxDay = 0;
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var intSelectedMonth = objMonth.options[objMonth.selectedIndex].value;
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var intSelectedYear = new Number(objYear.options[objYear.selectedIndex].value);
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if (!intSelectedYear)
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intSelectedYear = 2000;
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switch (intSelectedMonth) {
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case "1":
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case "3":
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case "5":
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case "7":
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case "8":
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case "10":
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case "12":
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intNewMaxDay = 31;
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break;
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case "4":
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case "6":
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case "9":
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case "11":
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intNewMaxDay = 30;
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break;
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case "2":
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if ((intSelectedYear % 4) != 0)
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intNewMaxDay = 28;
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else if ((intSelectedYear % 1000) == 0)
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intNewMaxDay = 29;
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else if ((intSelectedYear % 100) == 0)
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intNewMaxDay = 28;
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else
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intNewMaxDay = 29;
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break;
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};
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if (intNewMaxDay != intCurrentMaxDay) {
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// Redo the Days Dropdown
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var blnRequired = true;
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if (objDay.options[0].value == "")
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blnRequired = false;
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while (objDay.options.length)
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objDay.options[objDay.options.length - 1] = null;
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if (!blnRequired)
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objDay.options[0] = new Option("--", "");
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for (var intDay = 1; intDay <= intNewMaxDay; intDay++) {
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objDay.options[objDay.options.length] = new Option(intDay, intDay);
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};
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intCurrentDay = Math.min(intCurrentDay, intNewMaxDay);
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if (blnRequired)
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objDay.options[intCurrentDay - 1].selected = true;
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else
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objDay.options[intCurrentDay].selected = true;
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};
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};
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};
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};
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