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You may be get some help from the code below.
<%
String str="str";
%>

<script>
function accessVar(){
var varStr='<%=str%>';
alert(varStr);// here will diplay 'str'
}
</script>


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javascript(±ØÐëÊäÈë¹Ø¼ü×Ö²ÅÄܵã»÷³É¹¦)

<SCRIPT LANGUAGE="JavaScript">
<!--
function limitNum(obj) {
if(obj.value.replace(/\s/g,"")==""||obj.value.replace(/\s/g,"")=="ÊäÈë¹Ø¼ü×Ö")  {
  alert('ÇëÊäÈë¹Ø¼ü×Ö')
      return false;
}
}
//-->
</SCRIPT> 
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javascript ÉèÖÃcookie×¢ÒâÊÂÏî

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javascript ÉèÖÃcookie×¢ÒâÊÂÏî
ÔÚJavascript ÖУ¬cookie ¿ÉÒÔͨ¹ý document.cookie½øÐÐÉèÖ㬵±ÉèÖöà¸öcookieʱä¯ÀÀÆ÷»á×Ô¶¯°Ñ
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document.cookie = 'cookie1';
document.cookie ='cookie2';
alert (document.cookie) ;//Êä³ö cookie1 ; cookie2
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javascript ÃæÏò¶ÔÏó±à³ÌµÄÆðµã

/*
* JavaScript¶ÔÏó¾ÍÊÇÒ»×éÊôÐÔ£¨·½·¨£©µÄ¼¯ºÏ
* ÔÚ¸ÃÓïÑÔÖÐÈç¹û±äÁ¿Ãû»ò·½·¨Ãû²»·ûºÏÉùÃ÷¹æ·¶£¬
* ÔòÒ»¶¨µÃÓ÷½À¨ºÅ“ [] ”ÒýÓÃËü
*
*/


/**
* <1.>¸ÃÓï¾äÉùÃ÷ÁËÒ»¸öclass1À࣬class1Ï൱ÓÚ¹¹Ôì·½·¨£¬Óֽй¹ÔìÆ÷
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<script language="javascript">
var strM = "javascript is a good script language";
//ÔÚ´ËÎÒÏ뽫×ÖĸaÌæ»»³É×ÖĸA
alert(strM.replace("a","A"));
</script>
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