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IE or Netscape browser shows "script on this page is causing browser to run slowly"

Apr 8th, 2008 19:07
ha mo, Abolfazl Shirazi, soma shekar,


Abolfazl Shirazi:
Good Question!
You will see this message in your browser when there is an infinite 
loop or a very long loop in your script.
For example, In the page below you will see that message because there 
is an unlimited loop in (do {} While()):
<!-- Begin -->
<html>
<head>
<script language="javascript">
function start() {
	i=1
	do {
		document.write("hello<br>")
	}
	while(i == 1)
}
</script>
</head>
<body onload="start()">
</body>
</html>
<!-- End -->
Or you will see this message even when there is a limited but very 
long loop in your script. For example, a script which made a loop that 
repeat for over 10000 times. See the page below:
Enjoy It Friend!!!
<!-- Begin -->
<html>
<head>
<script language="javascript">
function start() {
	for(i=0;i<10000;i++) {
		document.write("hello<br>")
	}
}
</script>
</head>
<body onload="start()">
</body>
</html>
<!-- End -->
You will see this message usually when a loop repeats for more than 
8000 or 9000 times!
Remember that the scripts above are just some simple examples in order 
that you find out the answer.
Have Fun!
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