Something

_js_

function checkTerm()
{

var searchFor = document.form1.area1.value.lastIndexOf("\n");
var search = substring(searchFor);

if (search="help") {
document.form1.area1.value+="\n\nThe help section";
}

}


_html_


<form name="form1" method="post">
<textarea name="area1" onKeyDown="checkTerm();" style="width: 100.4%;" 

rows="18"></textarea>