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// s_id1: selectµÄid
var objSelect = document.getElementById(”s_id1”);
//»ñµÃË÷Òý
var indexSelect = objSelect .selectedIndex;
//»ñµÃselectÎı¾
var txtSelect = objSelect .options[index].text;
//»ñµÃselectÖµ
var valSelect = objSelect .options[index].value;
//¸Ä±äselectµÄÑ¡Ïî (objSelect .lengthµÄ³¤¶È´óÓÚ5µÄÇé¿öÏÂ,°ÑselectµÄµÚÎå¸öÑ¡ÖÐ)
objSelect.selectedIndex = 4


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ie firefox javascript

 1.document.formName.item("itemName") ÎÊÌâ
˵Ã÷:IEÏÂ,¿ÉÒÔʹÓÃdocument.formName.item("itemName")»ò document.formName.elements["elementName"];FirefoxÏÂ,Ö»ÄÜʹÓà document.formName.elements["elementName"].
½â¾ö·½·¨:ͳһʹÓÃdocument.formName.elements["elementName"].
2.¼¯ºÏÀà¶ÔÏóÎÊÌâ
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ÓÃJavaScriptÏÔʾ¹ã¸æÀ¸

 //¹ã¸æÀ¸
function MoveLeftLayer(layerName) {
var x = 5;
var y = 100;// ×ó²à¹ã¸æ¾àÀëÒ³Ê׸߶È
var diff = (document.body.scrollTop + y - document.all.AdLayer1.style.posTop)*.40;
var y = document.body.scrollTop + y - diff;
eval("document.all." + layerName + ".style.posTop = parseInt(y)");
e ......

ÓÃJavaScriptʵÏÖä¯ÀÀÆ÷״̬À¸·ÉÈëÎÄ×Ö

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function statusMessageObject(p,d) {  <!--????????????-->
  this.msg = MESSAGE
  this.out = " "
  this.pos = POSITION
  this.delay = DELAY
  this.i     = 0
  this.reset = clearMessage
}
function clearMessage( ......

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var   conn   =   Server.CreateObject("ADODB.Connection");
conn.ConnectionString   =   "Provider=Microsoft.Jet.OLEDB.4.0;Data   Source="   +   Server.MapPath("shjzd.mdb"); ......
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