Forms

<script language="javascript">
function doAlert() {
  alert("tekst");
  document.location.href="ny_url.htm";
}
<script>
<input type="button" value="Click here to proceed" onClick="doAlert();">

Jeg har ikke testet det, men jeg vil tro det virker...

<input type="button" value="Click Here To Proceed"
OnClick="function()">

i dit head felt:
function() {
alert("tekst");
document.location.href="ny.html";
}

Ok, det her var lidt for svært til lille mig, som lige er gået ind i forms, giver jer lige koden:

<div align="center">
<input type="button" value="Click Here To Proceed"
OnClick='alert("I told you, you didnt want to proceed.")
alert("but ofcause you wanted to, it is the human nature.")
alert("Allways doing what you are told not to!")
alert("Well now that you are here I might aswell keep you here")
alert("You shouldnt have pushed that stupid button, well anyway")
alert("I will let you go now, dont ever push that button again")
alert("In 5")
alert("4")
alert("3")
alert("1")
alert("Hmm wait a sec...")
alert("Doh, 2 is after 3 oh well starting over")
alert("redirecting in 5")
alert("4")
alert("3")
alert("2")
alert("1")'>
</div>

hvordan ville i bygge det ind?

<script language="javascript">
function doAlert() {
  alert("I told you, you didnt want to proceed.");
  alert("but ofcause you wanted to, it is the human nature.");
  alert("Allways doing what you are told not to!");
  alert("Well now that you are here I might aswell keep you here");
  alert("You shouldnt have pushed that stupid button, well anyway");
  alert("I will let you go now, dont ever push that button again");
  alert("In 5");
  alert("4");
  alert("3");
  alert("1");
  alert("Hmm wait a sec...");
  alert("Doh, 2 is after 3 oh well starting over");
  alert("redirecting in 5");
  alert("4");
  alert("3");
  alert("2");
  alert("1");
  document.location.href="ny_side.htm";
}
</script>

<div align="center"><input type="button" value="Click here to proceed" onClick="doAlert();"></div>

Du kan også bruge formulare:

<form action="Den side man skal ind på" method="post">
<input type="submit" value="Hej" onclick="alert('Hej') ; alert('Øhh') ; alert('lala') ; alert('Hej') ; alert('igen') ; ">
</form>

Tak til spotgun!

<div align="center">
<input type="button" value="Click Here To Proceed"
OnClick='alert("I told you, you didn't want to proceed.")
alert("but of course you wanted to, it is the human nature.")
alert("Always doing what you are told not to!")
alert("Well now that you are here I might as well keep you here")
alert("You shouldn't have pushed that stupid button, well anyway")
alert("I will let you go now, dont ever push that button again")
alert("In 5")
alert("4")
alert("3")
alert("1")
alert("Hmm wait a sec...")
alert("Doh, 2 is after 3 oh well starting over")
alert("redirecting in 5")
alert("4")
alert("3")
alert("2")
alert("1")'>
</div>

Har bare lige rettet dit engelsk :o)