U.Helper

<script>
$(function(){
this = $('*[alt="mybutton"]');// xDDD
this.click(function(){
$('*[alt="myDiv"]').load(location.href+' *[alt="myDiv"]');
})
})
</script>

$('#id').load(location.href + ' #id');

javascript: void( $(function () { this = 0; alert(this) }); );

function foo () {
alert(this);
};

foo.call('LOL');

<script>
$(function(){
this = $('*[alt="button"]');// xDDD
this.click(function(){
$('#linkPlace').load(location.href + '#linkPlace');
})
})
</script>
<button id="button">123</button>

<input type="button" value="Обновить" onclick="$('#linkPlace').load(location.href + ' #linkPlace');" />

<script>
$(function(){
this = $('*[alt="button"]');// xDDD
this.click(function(){
$('#xyle').load(location.href + '#xyle');
})
})
</script>
<button id="button">123</button><span id="xyle"></span>

<div><div id="myid">Участок для обновления</div></div>

$('#myid').parent().load(location.href + ' #myid')

<script>
function rld() {
$('#xyle').load(location.href + ' #xyle');
}
</script>

<div id="xyle"></div>
<button onclick="rld();">123</button>

<div><div id="myid"><div alt="text">Ждем: <span id="timeNumer">0</span> секунд</div></div></div>
<script type="text/javascript">    
var timerFIG = 10;
document.all.timeNumer.innerHTML = timerFIG;
var timer = setInterval("startTimer()",1000);    
function startTimer()        
{    
if(timerFIG !== 1) {    
timerFIG--;    
document.all.timeNumer.innerHTML = timerFIG;    
} else {    
clearInterval(timer);    
document.all.linkPlace.innerHTML = '123123';    
}    
}    
</script>
<script>
function rld() {
$('#myid').parent().load(location.href + ' #myid')
}
</script>
<button onclick="rld();">123</button>

node.onclick = function () {
var a = 666
};