js控制文本框只能输入数字 兼容FF
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<SCRIPT LANGUAGE="JavaScript">
<!--
function keyPress(evt) {
evt = (evt) ? evt : ((window.event) ? window.event : "");
//兼容IE和Firefox获得keyBoardEvent对象
var keyCode = evt.keyCode ? evt.keyCode : evt.which;
if ((keyCode < 48 || keyCode > 57)) {
if (window.event) { //IE
evt.returnValue = false;
} else { //Firefox
evt.preventDefault(); //event.returnValue=false 效果相同.
}
}
}
//-->
</SCRIPT>
</HEAD>
<BODY>
<INPUT TYPE="text" NAME="jliu" style="ime-mode:disabled;" onpaste="return false;" onKeyPress="keyPress(event)">
</BODY>
</HTML>