<script>
function check(it) {
/*
if (it.name == "b1") {
alert("button one clicked.");
}
if (it.name == "b2") {
alert("button two clicked.");
}
*/
/* Or */
if (it.value == "One") {
alert("button one clicked.");
}
if (it.value == "Two") {
alert("button two clicked.");
}
}
</script>
<input type="button" name="b1" value="One" onclick="check(this);"/>
<input type="button" name="b2" value="Two" onclick="check(this);"/>
function check(it) {
/*
if (it.name == "b1") {
alert("button one clicked.");
}
if (it.name == "b2") {
alert("button two clicked.");
}
*/
/* Or */
if (it.value == "One") {
alert("button one clicked.");
}
if (it.value == "Two") {
alert("button two clicked.");
}
}
</script>
<input type="button" name="b1" value="One" onclick="check(this);"/>
<input type="button" name="b2" value="Two" onclick="check(this);"/>
window.event.srcElement.id
etc.