on
English [?n] US [ɑ:n]
prep.(??? ???) to;(??? ???) on...; ..
adv. on, (continue) down
adj. ?? ??, ?? ?; click
英]
n. ?? ??; [???] ??? vi. , ??? ????; [??] ? ?? 3?? ??: ?? ???: ?? ?? ??: ?? ?? ??: ?? ?? ??: ??
?????? onclick ?? ???
??: ??? ???? ?????.
??: ??onclick="SomeJavaScriptCode"
????: SomeJavaScriptCode ?????. ? ???? ??? ? ??? JavaScript? ?????.?
?????? onclick ?? ?
<html>
<body>
Field1: <input type="text" id="field1" value="Hello World!">
<br />
Field2: <input type="text" id="field2">
<br /><br />
Click the button below to copy the content of Field1 to Field2.
<br />
<button onclick="document.getElementById('field2').value=
document.getElementById('field1').value">Copy Text</button>
</body>
</html>???? ?? ?
??? ????? ??? "???? ??" ??? ?????