js 去空[转]
<SCRIPT LANGUAGE="JavaScript">
<!-- //出处:网上搜集 // Trim() , Ltrim() , RTrim()
String.prototype.Trim = function() { return this.replace(/(^\s*)|(\s*$)/g, ""); }
String.prototype.LTrim = function() { return this.replace(/(^\s*)/g, ""); }
String.prototype.RTrim = function() { return this.replace(/(\s*$)/g, ""); }
//
--> </SCRIPT>

<input type="text" value=" 前后都是空格 " id="space">
<input type="button" value="去前后空格" onclick="javascript:document.getElementById('space').value=document.getElementById('space').value.Trim();
document.getElementById('space').select();">
<input type="button" value="去前空格" onclick="javascript:document.getElementById('space').value=document.getElementById('space').value.LTrim();
document.getElementById('space').select();">
<input type="button" value="去后空格" onclick="javascript:document.getElementById('space').value=document.getElementById('space').value.RTrim();document.getElementById('space').select();">
<input type="button" value="还原" onclick="javascript:document.getElementById('space').value=' 前后都是空格 ';">
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