doco

I did some search online for different coding and just trying to put 2 and 2 together.
I did find this which works with external links but not with internal ones.
here…
<script>
<!–
function land(ref, target)
{
lowtarget=target.toLowerCase();
if (lowtarget==”_self”) {window.location=loc;}
else {if (lowtarget==”_top”) {top.location=loc;}
else {if (lowtarget==”_blank”) {window.open(loc);}
else {if (lowtarget==”_parent”) {parent.location=loc;}
else {parent.frames[target].location=loc;};
}}}
}
function jump(menu)
{
ref=menu.choice.options[menu.choice.selectedIndex].value;
splitc=ref.lastIndexOf(“*”);
target=””;
if (splitc!=-1)
{loc=ref.substring(0,splitc);
target=ref.substring(splitc+1,1000);}
else {loc=ref; target=”_self”;};
if (ref != “”) {land(loc,target);}
}
//–>
</script>

<form action=”dummy” method=”post”><select name=”choice” size=”1″ onChange=”jump(this.form)”><option value=””>SELECT THE YEAR</option><option value=”http//:risticar.com/159-0″>2013</option><option value=”http//:risticar.com/160-0″>2012</option><option value=”http//:risticar.com/161-0″>2011</option></select></form>

…I’m stuck 🙁