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<script language="javascript">
function sumResult()
{
var obj1 = parseInt(document.getElementById("text1").value);
var obj2 = parseInt(document.getElementById("text2").value);
var result = obj1 + obj2;
var objResult = document.getElementById("result");
objResult.innerHTML = result;
}
</script>
<input id="text1" /><input id="text2" onblur="sumResult()"/><br>
<span id="result"></span>
<input type="text" id="a" onkeyup="abc()"/>
<input type="text" id="b" onkeyup="abc()"/>
<div id="cc" />
<script>
function abc(){
document.getElementById("cc").innerHtml = document.getElementById("a").value +document.getElementById("b").value
}
</script>