the function is in the page loading the ajax but i'm trying to call the function

codes:

[ajax]

$.ajax({
type: "POST",
url: "loginpersonal.asp",
data: "id=<%=request("id")%>",
beforeSend: function() {
    $("#personaltab").hide();
},
success: function(msg){
    $("#personaltab").empty().append(msg);
},
complete: function() {
    $("#personaltab").slideDown();
},
error: function() {
    $("#personaltab").append("error").slideDown();
}
});

[the js function]

function GetCount(t){
    if(t>0) {
        total = t
    }
    else {
        total -=1;
    }
    amount=total;
                                            if(amount < 0){
        startpersonalbid();
    }
    else{
        days=0;hours=0;mins=0;secs=0;out="";
        days=Math.floor(amount/86400);//days
        amount=amount%86400;
        hours=Math.floor(amount/3600);//hours
        amount=amount%3600;
        mins=Math.floor(amount/60);//minutes
        amount=amount%60;

        secs=Math.floor(amount);//seconds
        if(days != 0){out += days +":";}
        if(days != 0 || hours != 0){out += hours +":";}
        if(days != 0 || hours != 0 || mins != 0){out += ((mins>=10)?mins:"0"+mins) +":";}
        out += ((secs>=10)?secs:"0"+secs) ;
        document.getElementById('countbox').innerHTML=out;
        setTimeout("GetCount()", 1000);
    }
}
window.onload=function(){
GetCount(<%= DateDiff("s", Now,privatesellstartdate&" "&privatesellstarttime ) %>);

so at the end of the loginpersonal.asp from the ajax... if it does what it suppose to do... i'm trying to call the function GetCount() again.