正则限制文本输入

<p></p> <p>小写英文：</p> <xmp style="display:inline"></xmp><input id="test" onkeypress="reginput(/^[a-z]*$/)" style="ime-mode:disabled"> 大写英文：<xmp style="display:inline"></xmp><input id="test" onkeypress="reginput(/^[a-z]*$/)" style="ime-mode:disabled"> 任意数字：<xmp style="display:inline"></xmp><input id="test" onkeypress="reginput(/^[0-9]*$/)" style="ime-mode:disabled"> 限2位小数：<xmp style="display:inline"></xmp><input id="test" onkeypress="reginput(/^\d*\.?\d{0,2}$/)" style="ime-mode:disabled"> 如: 123.12 日　 期：<xmp style="display:inline"></xmp><input id="test" onkeypress="reginput(/^\d{1,4}([-\/](\d{1,2}([-\/](\d{1,2})?)?)?)?$/)" style="ime-mode:disabled"> 如: 2002-9-29 任意中文：<xmp style="display:inline"></xmp><input onkeypress="reginput(/^$/)"> 部分英文：<xmp style="display:inline"></xmp><input onkeypress="reginput(/^[a-e]*$/i)" style="ime-mode:disabled"> 范围: a,b,c,d,e 部分中文：<xmp style="display:inline"></xmp><input onkeypress="return false" onkeydown="settimeout('checkchinese('+this.value.length+','+this.uniqueid+')', 1)"> 范围: 一二三四五六七八九十 <p> </p>
[ctrl+a 全选 注:如需引入外部js需刷新才能执行]