javascript jump code collection

The first type:
<script language=”javascript” type=”text/javascript”>
=”?backurl=”+;
</script>
The second type:
<script language=”javascript”>
alert("return");
(-1);
</script>
The third type:
<script language=”javascript”>
(””);
</script>
The fourth type:
<script language=”JavaScript”>
='';
</script>
The fifth type:
<script language=”javascript”>
alert("Illegal access!");
='';
</script>

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<script language=”javascript”>
<!–
function logout()…{
if (confirm("Are you sure you want to cancel your identity? Yes - select OK, No - select Cancel"))…{
=”?act=logout”
}
}
–>
</script>
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<script language=”javascript”>
<!–
function logout()…{
alert("Are you sure you want to cancel your identity?");
=”?act=logout”
}
–>
</script>