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Copy codeThe Code is as follows:
<Html>
<Head>
<Title> JavaScript restricts the number of characters in the Textarea text field </title>
<Meta http-equiv = "Content-Type" content = "text/html; charset = gb2312"/>
<Script language = "JavaScript">
<! --//
Function textCounter (field, countfield, maxlimit ){
// Function, three parameters, form name, form field element name, limit character;
If (field. value. length> maxlimit)
// If the number of characters in the element area is greater than the maximum number of characters, it is truncated by the maximum number of characters;
Field. value = field. value. substring (0, maxlimit );
Else
// Display the remaining characters in the count area text box;
Countfield. value = maxlimit-field. value. length;
}
// -->
</SCRIPT>
</Head>
<Body>
<Form name = myform action = "">
<Textarea name = "message" cols = "28" rows = "5" onKeyDown = "textCounter (message, remLen, 6);" onKeyUp = "textCounter (message, remLen, 6); "> </textarea>
You can also enter <input name = "remLen" type = "text" value = "6" size = "5" readonly = "readonly"> characters
</Form>
</Body>
</Html>
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