<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    ';"> 

去掉所有的空格 

url=game_name.replace(/( )/g,"-").toLowerCase()+"-cd-key-gametime-card.html"

------解决方案--------------------

探讨

下面比较全吧：
JScript code<SCRIPT LANGUAGE="JavaScript"><!--//出处:网上搜集
// Trim() , Ltrim() , RTrim()
String.prototype.Trim=function()
{returnthis.replace(/(^\s*)|(\s*$)/g,"");
}

String.prototype.LTrim=function()
{returnthis.replace(/(^\s*)/g,"");
}

String.prototype.RTrim=function()
{returnthis.replace(/(\s*$)/g,"");
}</SCRIPT>