<div id="musteri_1">
<div class="input">
<input type="text" valıe="INPUT"/>
</div>
<div class="chckbox">
<input type="checkbox" value="CHECKBOX" />
<button type="button" onclick="kaydet($(this))" >ONAYLA</button>
</div>
</div>

<div id="musteri_2">
<div class="input">
<input type="text" valıe="INPUT"/>
</div>
<div class="chckbox">
<input type="checkbox" value="CHECKBOX" />
<button type="button" onclick="kaydet($(this))" >ONAYLA</button>
</div>
</div>

<div id="musteri_3">
<div class="input">
<input type="text" valıe="INPUT"/>
</div>
<div class="chckbox">
<input type="checkbox" value="CHECKBOX" />
<button type="button" onclick="kaydet($(this))" >ONAYLA</button>
</div>
</div>

<script type="text/javascript">
function kaydet(p){
$this = p;
var MusteriTutar = $this.parent().parent().find("input['type=text']:first").val();
}
</script>