CODICE SORGENTE
<html>
<head>
<script type="text/javascript" language="javascript">
function LTrim(String)
{
var i = 0;
var j = String.length - 1;
if (String == null)
return (false);
for (i = 0; i < String.length; i++)
{
if (String.substr(i, 1) != ' ' && String.substr(i, 1) != '\t')
break;
}
if (i <= j)
return (String.substr(i, (j+1)-i));
else
return ('');
}
function RTrim(String)
{
var i = 0;
var j = String.length - 1;
if (String == null)
return (false);
for(j = String.length - 1; j >= 0; j--)
{
if (String.substr(j, 1) != ' ' && String.substr(j, 1) != '\t')
break;
}
if (i <= j)
return (String.substr(i, (j+1)-i));
else
return ('');
}
function Trim(String)
{
if (String == null)
return (false);
return RTrim(LTrim(String));
}
</script>
</head>
<body>
<input type="text" name="txtTrim" value=" Hello!! ">
<input type="button" value="LTrim" onclick="txtTrim.value = LTrim(txtTrim.value)">
<input type="button" value="RTrim" onclick="txtTrim.value = RTrim(txtTrim.value)">
<input type="button" value="Trim" onclick="txtTrim.value = Trim(txtTrim.value)">
</body>
</html>
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