<input type="text" name="mytext" id="mytext" />
<input type="button" value="click" onclick="Check();" />
<script language="javascript">
function Check()
{
var re = new RegExp("/.(gif|jpg)$/i", "");
var myvalue=document.getElementById("mytext").value;
var mresult = re.exec(myvalue);
if( mresult != null )
{
// alert("找到的：" + mresult);
document.write(mresult);
}
}
</script>
<input type="button" value="click" onclick="Check();" />
<script language="javascript">
function Check()
{
var re = new RegExp("/.(gif|jpg)$/i", "");
var myvalue=document.getElementById("mytext").value;
var mresult = re.exec(myvalue);
if( mresult != null )
{
// alert("找到的：" + mresult);
document.write(mresult);
}
}
</script>
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