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JavaScript DHTML/Event onMethod/onChange - История изменений
2026-04-04T17:27:13Z
История изменений этой страницы в вики
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http://wbex.ru/index.php?title=JavaScript_DHTML/Event_onMethod/onChange&diff=2284&oldid=prev
в 10:02, 26 мая 2010
2010-05-26T10:02:40Z
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Admin: 1 версия
2010-05-26T07:20:56Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>=="onChange" Example==<br />
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<br />
<br />
<!-- start source code --><br />
<br />
<source lang="html4strict"><br />
<br />
<br />
<head><br />
<script language="JavaScript"><br />
function function2(colors) {<br />
var col = (colors.options[colors.selectedIndex].value);<br />
if (col) { <br />
document.bgColor = col; <br />
}<br />
alert("The background color has changed to "+col) <br />
} <br />
</script></head><br />
<body><br />
<select name="colors" onChange="function2(this)"><br />
<option value="white" selected>White</option><br />
<option value="cyan">Cyan</option><br />
<option value="ivory">Ivory</option><br />
</select><br />
</body><br />
<br />
<br />
<br />
</source><br />
<br />
<br />
<br />
<br />
==Text field on change event==<br />
<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="html4strict"><br />
<br />
<html><br />
<head><br />
<title>Required Field</title><br />
<script type="text/javascript"><br />
window.onload=setupEvents;<br />
function setupEvents(evnt) {<br />
document.someForm.text1.onchange = validateField;<br />
}<br />
function validateField(evnt) {<br />
var theEvent = evnt ? evnt : window.event;<br />
var target = evnt.target ? evnt.target : evnt.srcElement;<br />
<br />
document.write(target.value);<br />
<br />
}<br />
</script><br />
</head><br />
<body><br />
<form name="someForm"><br />
<input type="text" name="text1" /><br /><br />
<input type="password" name="text2" /><br /><br />
<input type="hidden" name="text3" value="hidden value" /><br />
<textarea name="text4" cols=50 rows=10>The text area</textarea><br />
<input type="submit" value="Submit" /><br />
</form><br />
</body><br />
</html><br />
<br />
<br />
</source></div>
Admin