on
English [?n] US [ɑ:n]
prep. (??? ???) pair (??? ???) on...; ...
adv. on; on
adj. ?? ??, ???; ???
英[ ?f??k?s ]
vt.& vi. (to) ??, (to) ???; ?? [?? ??]? ???? ???? vt. (? ?? ??) ?? ??; ??, ?? n. ???? ???; ??(??, ??, ?? ?) [??] ??, ?? 3?? ??: ?? ?? ??: ?? : ?? ????: ??
?????? onfocus ?? ???
??: ??? ???? ?? ? ?????.
??: ??onfocus="SomeJavaScriptCode"
????: SomeJavaScriptCode ?????. ? ???? ??? ? ??? JavaScript? ?????.?
?????? onfocus ?? ?
<html>
<head>
<script type="text/javascript">
function setStyle(x)
{
document.getElementById(x).style.background="yellow"
}
</script>
</head>
<body>
First name: <input type="text" onfocus="setStyle(this.id)" id="fname">
<br />
Last name: <input type="text" onfocus="setStyle(this.id)" id="lname">
</body>
</html>???? ?? ?
??? ????? ??? "???? ??" ??? ?????