function mygetclipdata() {
	if (!document.all) {
		netscape.security.PrivilegeManager
				.enablePrivilege('UniversalXPConnect');
		var clip = Components.classes['@mozilla.org/widget/clipboard;1']
				.createInstance(Components.interfaces.nsIClipboard);
		var trans = Components.classes['@mozilla.org/widget/transferable;1']
				.createInstance(Components.interfaces.nsITransferable);
		trans.addDataFlavor('text/unicode');
		var str = Components.classes["@mozilla.org/supports-string;1"]
				.createInstance(Components.interfaces.nsISupportsString);
		clip.getData(trans, clip.kGlobalClipboard);
		var str = new Object();
		var strLength = new Object();
		trans.getTransferData("text/unicode", str, strLength);
		if (str)
			str = str.value
					.QueryInterface(Components.interfaces.nsISupportsString);
		var pastetext;
		if (str)
			pastetext = str.data.substring(0, strLength.value / 2);
		return pastetext;
	} else {
		return window.clipboardData.getData("Text");
	}
}
function mysetclipdata(o) {
	if (!document.all) {
		netscape.security.PrivilegeManager
				.enablePrivilege('UniversalXPConnect');
		var clip = Components.classes['@mozilla.org/widget/clipboard;1']
				.createInstance(Components.interfaces.nsIClipboard);
		var trans = Components.classes['@mozilla.org/widget/transferable;1']
				.createInstance(Components.interfaces.nsITransferable);
		trans.addDataFlavor("text/unicode");
		var str = Components.classes["@mozilla.org/supports-string;1"]
				.createInstance(Components.interfaces.nsISupportsString);
		str.data = o;
		trans.setTransferData("text/unicode", str, o.length * 2);
		var clipid = Components.interfaces.nsIClipboard;
		clip.setData(trans, null, clipid.kGlobalClipboard);
	} else {
		window.clipboardData.setData("Text", o);
	}
}

function onmyinput(o, maxlength) {
	if (o.value.length >= maxlength) {
		if (o.value.length > maxlength)
			o.value = o.value.substring(0, maxlength);
		return false;
	}
	return true;
}

function onmypaste(o, maxlength) {
	var nMaxLen = o.getAttribute ? parseInt(maxlength) : "";
	if (!document.all) {

	} else {
		if (document.selection.createRange().text.length > 0) {
			var ovalueandclipboarddata = o.value
					+ window.clipboardData.getData("Text");
			if (o.getAttribute
					&& ovalueandclipboarddata.length
							- document.selection.createRange().text.length > nMaxLen) {
				if (window.clipboardData.getData("Text").substring(
						0,
						document.selection.createRange().text.length + nMaxLen
								- o.value.length) != "")
					window.clipboardData
							.setData(
									"Text",
									window.clipboardData
											.getData("Text")
											.substring(
													0,
													document.selection
															.createRange().text.length
															+ nMaxLen
															- o.value.length));
				else
					return false;
			}
		} else {
			var ovalueandclipboarddata = o.value
					+ window.clipboardData.getData("Text");
			if (o.getAttribute && ovalueandclipboarddata.length > nMaxLen) {
				if (ovalueandclipboarddata.substring(0, nMaxLen
						- o.value.length) != "")
					window.clipboardData.setData("Text", ovalueandclipboarddata
							.substring(0, nMaxLen - o.value.length));
				else
					return false;
			}
		}
		return true;
	}

}

function onmykeyup(o, maxlength) {
	if (o.value.length >= maxlength) {
		if (o.selectionStart < o.selectionEnd)
			return true;
		if (o.value.length > maxlength)
			o.value = o.value.substring(0, maxlength);
		return false;
	} else
		return true;
}

function onmykeypress(o, maxlength) {
	if (!document.all) {
		var nMaxLen = o.getAttribute ? parseInt(maxlength) : "";

		if (onmykeypress.caller.arguments[0].ctrlKey == true) {
			if (onmykeypress.caller.arguments[0].which == 118) {

				if (o.selectionStart < o.selectionEnd) {
					var ovalueandclipboarddata = o.value + mygetclipdata();
					if (o.getAttribute
							&& (ovalueandclipboarddata.length - o.selectionEnd
									+ o.selectionStart > nMaxLen)) {
						if (mygetclipdata().substring(
								0,
								o.selectionEnd - o.selectionStart + nMaxLen
										- o.value.length) != "")
							mysetclipdata(mygetclipdata().substring(
									0,
									o.selectionEnd - o.selectionStart + nMaxLen
											- o.value.length));
						else
							return false;
					}
				} else {
					var ovalueandclipboarddata = o.value + mygetclipdata();
					if (o.getAttribute
							&& ovalueandclipboarddata.length > nMaxLen) {
						if (ovalueandclipboarddata.substring(0, nMaxLen
								- o.value.length) != "")
							mysetclipdata(ovalueandclipboarddata.substring(0,
									nMaxLen - o.value.length));
						else
							return false;
					}
				}
				return true;

			}
		}

		if (onmykeypress.caller.arguments[0].which == 0
				|| onmykeypress.caller.arguments[0].which == 8)
			return true;
		if (o.value.length >= maxlength) {
			if (o.selectionStart < o.selectionEnd)
				return true;
			if (o.value.length > maxlength)
				o.value = o.value.substring(0, maxlength);
			return false;
		} else
			return true;

	} else {
		if (document.selection.createRange().text.length > 0)
			return true;
		if (o.value.length >= maxlength)
			return false;
		else
			return true;
	}
}

// checkbox all
function checkAllCheckBox(checkbox, allcheckbox) {
	var elements = document.getElementsByName(checkbox);
	var counter = elements.length;
	var checkint = 0;
	for (i = 0; i < counter; i++) {
		var element = elements[i];
		if (element.checked) {
			checkint++;
		}
	}
	if (checkint == elements.length && elements.length != 0) {
		document.getElementById(allcheckbox).checked = true;
	} else {
		document.getElementById(allcheckbox).checked = false;
	}
}