<html> <head> <title>JS限制Textarea文本域字符个数</title> <meta httpequiv="ContentType" content="text/html; charset=gb" /> <SCRIPT LANGUAGE="JavaScript"> <!// function textCounter(field countfield maxlimit) { // 函数个参数表单名字表单域元素名限制字符 if (fieldvaluelength > maxlimit) //如果元素区字符数大于最大字符数按照最大字符数截断 fieldfieldvalue = fieldvaluesubstring( maxlimit); else //在记数区文本框内显示剩余的字符数 countfieldvalue = maxlimit fieldvaluelength; } > </SCRIPT> </head> <body> <form name=myform action=""> <textarea name="message" cols="" rows="" onKeyDown="textCounter(messageremLen);" onKeyUp="textCounter(messageremLen);"></textarea> 您还可以输入:<input name="remLen" type="text" value="" size="" readonly="readonly">个字符 </form> </body> </html>
