Need to click this button, please help

<div class=" x-grid3-hd-inner x-grid3-hd-last_tweet_time x-component sort-desc "
 id="x-auto-73"
 role="columnheader"
 aria-haspopup="true"
 aria-owns="x-auto-73-menu"
 style="width: 111px; height: 16px;"
 aria-sort="ascending"
 qtip="The user's last tweet time since the last time the information was updated.">
<a class="x-grid3-hd-btn" style="height: 24px;" href="#"></a>
<span class=" x-component" id="x-auto-72">Last Tweet *</span>
<img class="x-grid3-sort-icon"
 src="data:image/gif;base64,R0lGODlhAQABAID/AMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw=="></div>

[edit]for reference please see

http://www.sitepoint.com/forums/showthread.php?1200406-need-help-with-javascript-code[/edit]

Your question is pretty vague. Can you say more?

its a button that i would like to click, after that i will use a greacemonkey userscript so its easier too click this button with programs like autoit, but autoit cant click this buttons.
I dont know anything else i could say about it …

this is the div/button that i would like to click

<span class=" x-component" 
id="x-auto-72">Last Tweet *</span>

and it was in this div:

<div class=" x-grid3-hd-inner x-grid3-hd-last_tweet_time x-component sort-desc " 
id="x-auto-73" role="columnheader" aria-haspopup="true" aria-owns="x-auto-73-menu" 
style="width: 111px; height: 16px;" aria-sort="ascending" qtip="The user's last tweet 
time since the last time the information was updated."><a class="x-grid3-hd-btn" 
style="height: 24px;" href="#"></a><span class=" x-component" 
id="x-auto-72">Last Tweet *</span><img class="x-grid3-sort-icon" 
src="data:image/gif;base64,R0lGODlhAQABAID/AMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw=="></div>

I hope somebody can help me with this

Hi,

Maybe:

var button = document.getElementById("x-auto-72");
button.click();