function MiktarChange(miktar, Bfiyat, tutar)
{
if (miktar.value==""||miktar.value==0)
    miktar.value="1";
tutar.value= round(miktar.value * Bfiyat.value);
if (tutar.value.indexOf(".")!=-1)
tutar.value=tutar.value;
else tutar.value=tutar.value+".00";
Topla();
return true;
}

function round(number,X) {
X = (!X ? 2 : X);
return Math.round(number*Math.pow(10,X))/Math.pow(10,X);}

function Topla(){
try
{
    var araToplam=document.aspnetForm.ctl00_CP_txtAraToplam; araToplam.value=0;
    var kdv=document.aspnetForm.ctl00_CP_txtKDV; kdv.value=0;
    var toplam=document.aspnetForm.ctl00_CP_txtToplam;toplam.value.value=0;
    var tutar1=(document.aspnetForm.ctl00_CP_txtTutar1==undefined?0:document.aspnetForm.ctl00_CP_txtTutar1.value);
    var tutar2=(document.aspnetForm.ctl00_CP_txtTutar2==undefined?0:document.aspnetForm.ctl00_CP_txtTutar2.value);
    var tutar3=(document.aspnetForm.ctl00_CP_txtTutar3==undefined?0:document.aspnetForm.ctl00_CP_txtTutar3.value);
    var tutar4=(document.aspnetForm.ctl00_CP_txtTutar4==undefined?0:document.aspnetForm.ctl00_CP_txtTutar4.value);
    var tutar5=(document.aspnetForm.ctl00_CP_txtTutar5==undefined?0:document.aspnetForm.ctl00_CP_txtTutar5.value);
    var tutar6=(document.aspnetForm.ctl00_CP_txtTutar6==undefined?0:document.aspnetForm.ctl00_CP_txtTutar6.value);
    var tutar7=(document.aspnetForm.ctl00_CP_txtTutar7==undefined?0:document.aspnetForm.ctl00_CP_txtTutar7.value);
    var tutar8=(document.aspnetForm.ctl00_CP_txtTutar8==undefined?0:document.aspnetForm.ctl00_CP_txtTutar8.value);
    var tutar9=(document.aspnetForm.ctl00_CP_txtTutar9==undefined?0:document.aspnetForm.ctl00_CP_txtTutar9.value);
    var tutar10=(document.aspnetForm.ctl00_CP_txtTutar10==undefined?0:document.aspnetForm.ctl00_CP_txtTutar10.value);
    var tutar11=(document.aspnetForm.ctl00_CP_txtTutar11==undefined?0:document.aspnetForm.ctl00_CP_txtTutar11.value);
    var tutar12=(document.aspnetForm.ctl00_CP_txtTutar12==undefined?0:document.aspnetForm.ctl00_CP_txtTutar12.value);
    var tutar13=(document.aspnetForm.ctl00_CP_txtTutar13==undefined?0:document.aspnetForm.ctl00_CP_txtTutar13.value);
    araToplam.value = round(parseFloat(tutar1)+parseFloat(tutar2)+parseFloat(tutar3)+parseFloat(tutar4)+parseFloat(tutar5)+parseFloat(tutar6)+parseFloat(tutar7)+parseFloat(tutar8)+parseFloat(tutar9)+parseFloat(tutar10)+parseFloat(tutar11)+parseFloat(tutar12)+parseFloat(tutar13));
   
    kdv.value = round(parseFloat(kdv.value) + parseFloat(araToplam.value*0.18));
    toplam.value = round(parseFloat(araToplam.value) + parseFloat(kdv.value));
}
catch(err) {}
}