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Programming Share, tanya jawab, saling bantu antar programmer dengan berbagai macam bahasa pemrograman.

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Old 20th November 2011
PHPmaster PHPmaster is offline
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Default [need help] javascript

mau nanya dong.

gw punya function javascript:




Code:

function sisa(){
var awal = document.getElementById("").value
var dibayar = document.getElementById("").value
document.getElementById("").value = awal - dibayar
}

dan ini




Code:

function cekBayar()
{
var maubayar = document.getElementById("").value;
var disisain = document.getElementById("").value;
if (disisain < maubayar)
{
alert('Jumlah yang dibayarkan tidak boleh lebih besar dari sisa pembayaran');
document.getElementById("").value = '';
return false;
}
else
{
return true
}
}

dan textbox


Code:



singkat cerita..

function sisa() dipanggil pas form load pertama x.

function cekBayar() dipanggil setelah input text ke txt_jmlbayar.



misalkan txt_jmlsisa = 11000

txt_jmlbayar = 80



selalu yg keluar alert 'Jumlah yang dibayarkan tidak boleh lebih besar dari sisa pembayaran' padahal txt_jmlbayar lebih kecil dari txt_jmlsisa



ada bisa kasih solusinya?

thanks

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