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function on_search()
{
var content = document.getElementById("searchname").value;

if( content != "" )
document.getElementById("searchresult").innerHTML="ÕýÔÚËÑË÷...";
else
document.getElementById("searchresult").innerHTML="";

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http_request=false;
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if(window.XMLHttpRequest)//Mozillaä¯ÀÀÆ÷
{
http_request=new XMLHttpRequest();
if(http_request.overrideMimeType)
{//ÉèÖÃMIMEÀà±ð
http_request.overrideMimeType("text/xml");
}
}
else if(window.ActiveXObject)//IEä¯ÀÀÆ÷
{
try
{
http_request=new ActiveXObject("Msxml2.XMLHttp");
}
catch(e)
{
try
{
http_request=new ActiveXobject("Microsoft.XMLHttp");
}
catch(e){}
}
}
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{
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return false;
}

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What is AJAX
This section is for those who have no idea what AJAX is. If you don’t fall into this category, feel free to skip to the next section.
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