Fandt selv ud af det..!
Og jeg som troede at jeg var håbløs til javascript(okÆ, der er så ik vildt meget javascript det) :D
Men sårn' her blev resultatet altså:
<html>
<head>
<title>FTP login</title>
</head>
<BODY BGCOLOR="#000000" TEXT="#000000" LINK="#0000FF" VLINK="#660066" ALINK="#FF0000" marginheight="0" marginwidth="0" topmargin="0" leftmargin="0" rightmargin="0">
<table width="98%" border="0" cellspacing="0" cellpadding="0" height="100%">
<tr>
<td width="100%" valign="top" height="100%">
<center>
<table border="0" width="100%" cellpadding="0" cellspacing="0" height="100%">
<tr>
<td width="100%" valign="top" height="100%">
<DIV STYLE="text-align:center"><FONT color=#8b8b8b face=Verdana size=1><BR><FONT color=#FFFFFF>Udfyld felterne for at logge ind på Terrak(10.170.136.89)<BR></FONT>
<FORM>
<TABLE border=0 cellPadding=5>
<TBODY>
<TR>
<TD><FONT color=#FFFFFF face=Verdana size=1>Bruger:</FONT></TD>
<TD><INPUT class=FTP-Login maxLength=7 name=user size=7 style="FONT-FAMILY: verdana"> </TD>
<TD align=right></TD></TR>
<TR>
<TD><FONT color=#FFFFFF face=Verdana size=1>Kode:</FONT></TD>
<TD><INPUT class=FTP-Login maxLength=7 name=kode size=7 style="FONT-FAMILY: verdana"> </TD>
<TD align=right></TD></TR>
<TR>
<TD colSpan=3>
<CENTER>
<P><INPUT class=FTP-Login onclick= "window.open('
ftp://' +form.user.value +':' +form.kode.value +'@10.170.136.89/')" style="FONT-FAMILY: verdana, arial; FONT-SIZE: 11px" type=button value="Login"> <INPUT class=FTP-Login style="FONT-FAMILY: verdana, arial; FONT-SIZE: 11px" type=reset value="Nulstil felter"></P></CENTER></TD></TR></TBODY></TABLE></FORM></FONT></DIV></table>
</td></td></tr>
</tr>
</table>
</center>
</body>
</html>