where does the & go LOL

ok this is the javascript


<script type="text/javascript">

var options = {
script:"test.php?json=true&limit=6&one="+document.getElementById('oneone').value,
//script:"test.php?json=true&limit=6&",
varname:"input",
json:true,
shownoresults:false,
maxresults:6,
callback: function (obj) { document.getElementById('testid').value = obj.id; },

};
var as_json = new bsn.AutoSuggest('testinput', options);

</script>


ok now no with this code not commented out i get


script:"test.php?json=true&limit=6&one="+document.getElementById('oneone').value,

i get the value of oneone in firebug test.php?json=true&limit=6&one=s_city

when i comment that out and put in

script:"test.php?json=true&limit=6&",

i get test.php?json=true&limit=6& varname=input

what i am asking is i know (well i think)i need a & in the first little section of code so i keeps adding the var name to the url .

please help thanks