<HTML><HEAD><META http-equiv='Content-Type' content='text/html; charset=gb2312'><TITLE>自动检查并替换文本框内的字符</TITLE>
<SCRIPT LANGUAGE="JavaScript"><!-- Beginfunction replaceChars(entry) {out = "a"; // 要替代的字母add = "z"; // 替换后的字母temp = "" + entry;
while (temp.indexOf(out)>-1) {pos= temp.indexOf(out);temp = "" + (temp.substring(0, pos) + add + temp.substring((pos + out.length), temp.length));}document.subform.text.value = temp;}// End --></script></HEAD><BODY >
<center><form name="subform">
<input type=text name=text size=40 value="abcdabcd"><br><input type=button name=action value="Done!" onClick="replaceChars(document.subform.text.value);">
</form></center>
</BODY></HTML>
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tagName的使用，留一笔
<SCRIPT LANGUAGE="JavaScript"><!--function TagSample(s){ var source=event.srcElement; if (source.tagName.toUpperCase() == "IMG") { if (s == 1) { source.style.border>>>详细阅读
本文标题：自动检查并替换文本框内的字符
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