全角カッコと半角カッコを置き換える方法の例


<html> 
<head> 
<title> </title> 
<meta   http-equiv="Content-Type"   content="text/html;   charset=gb2312"   /> 
<style   type="text/css"> 
*{margin:0;padding:0;} 
</style> 
<script   type="text/javascript"   language="javascript"> 

function   sAlert(){ 

	var str = "             ,      (A),    (B),         (A)      (C) (D)。";
	str=str.replace(/\(/g,"<font color='red'>(XXX)</font>");
	document.getElementById("testDIV").innerHTML = str;

} 
//    (  (
function regInput()
{
	
	value= document.getElementById("testValue").value;
	value=value.replace(/\(/g,'\(');
	//alert(value);
	document.getElementById("testValue").value=value
}

</script> 
</head> 

<body> 
<input id="testValue" onkeyup="regInput()" >

<div id="testDIV"></div>
<script   type="text/javascript"   language="javascript"> 

sAlert();
</script> 
</body> 
</html>