Código PHP:
/**
Convenience function for writing the code for the buttons that bring us back or forward
a month.
*/
function getButtonCode(dateFieldName, dateVal, adjust, label)
{
var newMonth = (dateVal.getMonth () + adjust) % 12;
var newYear = dateVal.getFullYear() + parseInt((dateVal.getMonth() + adjust) / 12);
if (newMonth < 0) {
newMonth += 12;
newYear += -1;
}
return "<button class='dpButton' onClick='refreshDatePicker(\"" + dateFieldName + "\", " + newYear + ", " + newMonth + ");'>" + label + "</button>";
}
/**
Convert a JavaScript Date object to a string, based on the dateFormat and dateSeparator
variables at the beginning of this script library.
*/
function getDateString(dateVal)
{
var dayString = "00" + dateVal.getDate();
var monthString = "00" + (dateVal.getMonth()+1);
dayString = dayString.substring(dayString.length - 2);
monthString = monthString.substring(monthString.length - 2);
switch (dateFormat) {
case "dmy" :
return dayString + dateSeparator + monthString + dateSeparator + dateVal.getFullYear();
case "ymd" :
return dateVal.getFullYear() + dateSeparator + monthString + dateSeparator + dayString;
case "mdy" :
default :
return monthString + dateSeparator + dayString + dateSeparator + dateVal.getFullYear();
}
}
/**
Convert a string to a JavaScript Date object.
*/
function getFieldDate(dateString)
{
var dateVal;
var dArray;
var d, m, y;
try {
dArray = splitDateString(dateString);
if (dArray) {
switch (dateFormat) {
case "dmy" :
d = parseInt(dArray[0], 10);
m = parseInt(dArray[1], 10) - 1;
y = parseInt(dArray[2], 10);
break;
case "ymd" :
d = parseInt(dArray[2], 10);
m = parseInt(dArray[1], 10) - 1;
y = parseInt(dArray[0], 10);
break;
case "mdy" :
default :
d = parseInt(dArray[1], 10);
m = parseInt(dArray[0], 10) - 1;
y = parseInt(dArray[2], 10);
break;
}
dateVal = new Date(y, m, d);
} else if (dateString) {
dateVal = new Date(dateString);
} else {
dateVal = new Date();
}
} catch(e) {
dateVal = new Date();
}
return dateVal;
}
/**
Try to split a date string into an array of elements, using common date separators.
If the date is split, an array is returned; otherwise, we just return false.
*/
function splitDateString(dateString)
{
var dArray;
if (dateString.indexOf("/") >= 0)
dArray = dateString.split("/");
else if (dateString.indexOf(".") >= 0)
dArray = dateString.split(".");
else if (dateString.indexOf("-") >= 0)
dArray = dateString.split("-");
else if (dateString.indexOf("\\") >= 0)
dArray = dateString.split("\\");
else
dArray = false;
return dArray;
}
/**
Update the field with the given dateFieldName with the dateString that has been passed,
and hide the datepicker. If no dateString is passed, just close the datepicker without
changing the field value.
Also, if the page developer has defined a function called datePickerClosed anywhere on
the page or in an imported library, we will attempt to run that function with the updated
field as a parameter. This can be used for such things as date validation, setting default
values for related fields, etc. For example, you might have a function like this to validate
a start date field:
function datePickerClosed(dateField)
{
var dateObj = getFieldDate(dateField.value);
var today = new Date();
today = new Date(today.getFullYear(), today.getMonth(), today.getDate());
if (dateField.name == "StartDate") {
if (dateObj < today) {
// if the date is before today, alert the user and display the datepicker again
alert("Please enter a date that is today or later");
dateField.value = "";
document.getElementById(datePickerDivID).style.visibility = "visible";
adjustiFrame();
} else {
// if the date is okay, set the EndDate field to 7 days after the StartDate
dateObj.setTime(dateObj.getTime() + (7 * 24 * 60 * 60 * 1000));
var endDateField = document.getElementsByName ("EndDate").item(0);
endDateField.value = getDateString(dateObj);
}
}
}
*/
function updateDateField(dateFieldName, dateString)
{
var targetDateField = document.getElementsByName (dateFieldName).item(0);
if (dateString)
targetDateField.value = dateString;
var pickerDiv = document.getElementById(datePickerDivID);
pickerDiv.style.visibility = "hidden";
pickerDiv.style.display = "none";
adjustiFrame();
targetDateField.focus();
// after the datepicker has closed, optionally run a user-defined function called
// datePickerClosed, passing the field that was just updated as a parameter
// (note that this will only run if the user actually selected a date from the datepicker)
if ((dateString) && (typeof(datePickerClosed) == "function"))
datePickerClosed(targetDateField);
}
/**
Use an "iFrame shim" to deal with problems where the datepicker shows up behind
selection list elements, if they're below the datepicker. The problem and solution are
described at:
http://dotnetjunkies.com/WebLog/jking/archive/2003/07/21/488.aspx
http://dotnetjunkies.com/WebLog/jking/archive/2003/10/30/2975.aspx
*/
function adjustiFrame(pickerDiv, iFrameDiv)
{
// we know that Opera doesn't like something about this, so if we
// think we're using Opera, don't even try
var is_opera = (navigator.userAgent.toLowerCase().indexOf("opera") != -1);
if (is_opera)
return;
// put a try/catch block around the whole thing, just in case
try {
if (!document.getElementById(iFrameDivID)) {
// don't use innerHTML to update the body, because it can cause global variables
// that are currently pointing to objects on the page to have bad references
//document.body.innerHTML += "<iframe id='" + iFrameDivID + "' src='javascript:false;' scrolling='no' frameborder='0'>";
var newNode = document.createElement("iFrame");
newNode.setAttribute("id", iFrameDivID);
newNode.setAttribute("src", "javascript:false;");
newNode.setAttribute("scrolling", "no");
newNode.setAttribute ("frameborder", "0");
document.body.appendChild(newNode);
}
if (!pickerDiv)
pickerDiv = document.getElementById(datePickerDivID);
if (!iFrameDiv)
iFrameDiv = document.getElementById(iFrameDivID);
try {
iFrameDiv.style.position = "absolute";
iFrameDiv.style.width = pickerDiv.offsetWidth;
iFrameDiv.style.height = pickerDiv.offsetHeight ;
iFrameDiv.style.top = pickerDiv.style.top;
iFrameDiv.style.left = pickerDiv.style.left;
iFrameDiv.style.zIndex = pickerDiv.style.zIndex - 1;
iFrameDiv.style.visibility = pickerDiv.style.visibility ;
iFrameDiv.style.display = pickerDiv.style.display;
} catch(e) {
}
} catch (ee) {
}
}
y para presentarlo:
Código HTML:
<input name="data" value="" size="15" /><img align="absmiddle" src="img/calendari.gif" onClick="displayDatePicker('data');" width="34" height="22" border="0" alt="">