<html>
<head>
</head>
<body>
<input type="texe" name="INum" id="INum"></input>
<input type="button" name="BNum" onclick="cop()" value="计算"></input>
<script language="javascript">
function cop()
{
var tnum= document.getElementById("INum").value;
var tarr = tnum.split(' ');
var a,b;
a = parseInt(tarr[0]);
b= parseInt(tarr[1]);
if(a<0)
{
a=-a;
}
if(b<0)
{
b=-b;
}
alert(a+b);
}
</script>
</body>
</html>
