JS控制文本框禁止输入特殊字符

<input type="text" class="domain" onkeyup="this.value=this.value.replace(/[^u4e00-u9fa5w]/g,'');">
this.value=this.value.replace(/[^u4e00-u9fa5w]/g,'')

<input onkeyup="value=value.replace(/[^0-9]/g,'')" onpaste="value=value.replace(/[^0-9]/g,'')" oncontextmenu = "value=value.replace(/[^0-9]/g,'')">

<input onkeyup="value=value.replace(/[^\0-9\.]/g,'')" onpaste="value=value.replace(/[^\0-9\.]/g,'')" oncontextmenu = "value=value.replace(/[^\0-9\.]/g,'')">

<input onkeyup="value=value.replace(/[^\a-\z\A-\Z]/g,'')" onpaste="value=value.replace(/[^\a-\z\A-\Z]/g,'')" oncontextmenu = "value=value.replace(/[^\a-\z\A-\Z]/g,'')">

<input onkeyup="value=value.replace(/[^\a-\z\A-\Z0-9]/g,'')" onpaste="value=value.replace(/[^\a-\z\A-\Z0-9]/g,'')" oncontextmenu = "value=value.replace(/[^\a-\z\A-\Z0-9]/g,'')">

<input onkeyup="value=value.replace(/[^\u4E00-\u9FA5]/g,'')" onpaste="value=value.replace(/[^\u4E00-\u9FA5]/g,'')" oncontextmenu = "value=value.replace(/[^\u4E00-\u9FA5]/g,'')">

<input onkeyup="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5]/g,'')" onpaste="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5]/g,'')" oncontextmenu = "value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5]/g,'')">

<input onkeyup="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\ ]/g,'')" onpaste="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\ ]/g,'')" oncontextmenu = "value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\ ]/g,'')">

<input onkeyup="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\.]/g,'')" onpaste="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\.]/g,'')" oncontextmenu = "value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\.]/g,'')">

//验证输入框内不能输入特殊字符,输入就立刻清除
	 function cleanSpelChar(th){ 
	 if(/["'<>%;)(&+]/.test(th.value)){ 
	 $(th).val(th.value.replace(/["'<>%;)(&+]/,"")); 
	 } 
	}

//验证输入框内不能输入特殊字符，输入前先作判断
function processSpelChar() {
 var code;
 var character;
 if (document.all) {
 code = window.event.keyCode;
 } else {
 code = arguments.callee.caller.arguments[0].which;
 }
 var character = String.fromCharCode(code);
 var txt = new RegExp(/["'<>%;)(&+]/);
 if (txt.test(character)) {
 if (document.all) {
 window.event.returnValue = false;
 } else {
 arguments.callee.caller.arguments[0].preventDefault();
 }
 }
}

var subject= document.getElementById("subject").value;
subject = subject.replace(/[\-\_\,\.\!\|\~\`\(\)\#\@\%\-\+\=\/\'\$\%\^\&\*\{\}\:\;\"\L\<\>\?\\]/g, ''); 
alert(subject);