Question : How to Redirect for SharePoint Maintenance

I want to setup redirection to an 'Unavailable - System Maintenance' page for all SharePoint users in a site collection while still being able to access the SharePoint sites myself.
I have setup an IIS Redirect for the primary site, but then I can't get to the pages eiter.. I am thinking that perhaps this could be done by having different urls point to the same site, but can't seem to get it to work.
How do you redirect SharePoint users temporarily without blocking all access to the SharePoint sites?

Answer : How to Redirect for SharePoint Maintenance

>>However I don't get all the number of .parent() correctly and it's a pain in the butt to find them every time.
>>I then saw on jQuery.com that I can use .closest() (http://api.jquery.com/closest/) so I thought I would be able to write something like:
If you had posted your HTML markup from the very start, I would have suggested that to begin with. The more info you provide, it is more likely that you are going to get a quick response/solution.

>>//Performance Measure
>> control = $("select[title='Performance Measure']").closest('tr').hide();
>>It didn't work though and the elements are still visible.
That's because the element with title="Performance Measure" is NOT a <SELECT> tag. It is an <INPUT> tag, so what you needed is:
control = $("input[title='Performance Measure']").closest('tr').hide();

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
		<title>hielo</title>
		<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
		<script>
		$(function(){
			//just for demo purposes,
			//this will hide ONLY the <tr> with "Performace Measure" upon load
			$('input[title="Performance Measure"]').closest('tr').hide();
		});
		</script>
	</head>
	<body>
<table>
	<TR>
		<TD nowrap="true" valign="top" width="190px" class="ms-formlabel">
		  	<H3 class="ms-standardheader"><nobr>Strategic Priority</nobr></H3>
		</TD>
		<TD valign="top" class="ms-formbody" width="400px">
            <!-- FieldName="Performance Measure"
                   FieldInternalName="Performance_x0020_Measure"
                   FieldType="SPFieldLookup"
              -->
			<span dir="none">
				<span style="vertical-align:middle">
					<input title="Strategic Priority" name="ctl00$m$g_c6ae303a_6013_4adb_8057_63a214bcfd24$ctl00$ctl04$ctl06$ctl00$ctl00$ctl04$ctl00$ctl01" type="text" id="ctl00_m_g_c6ae303a_6013_4adb_8057_63a214bcfd24_ctl00_ctl04_ctl06_ctl00_ctl00_ctl04_ctl00_ctl01" class="ms-lookuptypeintextbox" onfocusout="HandleLoseFocus()" opt="_Select" optHid="SPPerformance_x0020_Measure_Hiddenctl00$m$g_c6ae303a_6013_4adb_8057_63a214bcfd24$ctl00$ctl04$ctl06$c  tl00$ctl00$ctl04$ctl00" onkeypress="HandleChar()" onkeydown="HandleKey()" match="" choices="(None) lotsofoptions" onchange="HandleChange()" />
					<img alt="Display lookup values" onclick="ShowDropdown('ctl00_m_g_c6ae303a_6013_4adb_8057_63a214bcfd24_ctl00_ctl04_ctl06_ctl00_ctl00_ctl04_ctl  00_ctl01');" src="/_layouts/images/dropdown.gif" style="border-width:0px;vertical-align:middle;" />
				</span>
				<br/>
			</span>
		</TD>
	</TR>

	<TR>
		<TD nowrap="true" valign="top" width="190px" class="ms-formlabel">
		  	<H3 class="ms-standardheader"><nobr>Performance Measure</nobr></H3>
		</TD>
		<TD valign="top" class="ms-formbody" width="400px">
            <!-- FieldName="Performance Measure"
                   FieldInternalName="Performance_x0020_Measure"
                   FieldType="SPFieldLookup"
              -->
			<span dir="none">
				<span style="vertical-align:middle">
					<input title="Performance Measure" name="ctl00$m$g_c6ae303a_6013_4adb_8057_63a214bcfd24$ctl00$ctl04$ctl06$ctl00$ctl00$ctl04$ctl00$ctl01" type="text" id="ctl00_m_g_c6ae303a_6013_4adb_8057_63a214bcfd24_ctl00_ctl04_ctl06_ctl00_ctl00_ctl04_ctl00_ctl01" class="ms-lookuptypeintextbox" onfocusout="HandleLoseFocus()" opt="_Select" optHid="SPPerformance_x0020_Measure_Hiddenctl00$m$g_c6ae303a_6013_4adb_8057_63a214bcfd24$ctl00$ctl04$ctl06$c  tl00$ctl00$ctl04$ctl00" onkeypress="HandleChar()" onkeydown="HandleKey()" match="" choices="(None) lotsofoptions" onchange="HandleChange()" />
					<img alt="Display lookup values" onclick="ShowDropdown('ctl00_m_g_c6ae303a_6013_4adb_8057_63a214bcfd24_ctl00_ctl04_ctl06_ctl00_ctl00_ctl04_ctl  00_ctl01');" src="/_layouts/images/dropdown.gif" style="border-width:0px;vertical-align:middle;" />
				</span>
				<br/>
			</span>
		</TD>
	</TR>
</table>
	</body>
</html>