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POhow to work with multiple ajax?
 

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    <p>i am using ajax to get data in Date Label, bt it is not working. Details() function is working , but showDate() is stucked. How i get the data in <strong>dt id</strong>??</p> <pre><code>&lt;label&gt;&lt;b&gt;From&lt;/b&gt;&lt;/label&gt; &lt;select id="f" onchange="Details();"&gt;&lt;?php echo $coptions; ?&gt;&lt;/select&gt; &lt;label&gt;&lt;b&gt;Destination&lt;/b&gt;&lt;/label&gt; &lt;select id="d" onchange="Details();"&gt;&lt;?php echo $coptions; ?&gt;&lt;/select&gt; &lt;label&gt;&lt;b&gt;Flight Name&lt;/b&gt;&lt;/label&gt; &lt;select id="list" onchange="showDate();" &gt;&lt;/select&gt; &lt;label&gt;&lt;b&gt;Date&lt;/b&gt;&lt;/label&gt; &lt;select id="dt" &gt;&lt;/select&gt; &lt;button &gt;Go&lt;/button&gt; </code></pre> <p>here is my ajax functions:</p> <pre><code>function Details() { var xmlhttp; var fname = document.getElementById("f").value; var dname = document.getElementById("d").value; if (window.XMLHttpRequest) { // code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else { // code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4) { document.getElementById("list").innerHTML=xmlhttp.responseText; showDate(); } } xmlhttp.open("GET","route.php?q="+fname+"&amp;w="+dname,true); xmlhttp.send(); //loadDetails(); } function showDate() { var xmlhttp; var ex=document.getElementById("list"); var id=ex[ex.selectedIndex].id; if (window.XMLHttpRequest) { // code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else { // code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 &amp;&amp; xmlhttp.status==200) { document.getElementById("dt").innerHTML=xmlhttp.responseText; } } xmlhttp.open("GET","schdl2.php?f="+id,true); xmlhttp.send(); //loadDetails(); } </code></pre> <p>my schdl2.php page is like this:</p> <pre><code>&lt;?php session_start(); require_once("dbconnect.php"); $fl=$_REQUEST['f']; $sql= "SELECT date FROM schedule where flight='$f1'"; $rslt = mysql_query($sql); $foptions=""; while ($row=mysql_fetch_array($rslt)) { $rd=$row["date"]; $foptions.="&lt;option&gt;$rd&lt;option&gt;"; } echo $foptions; ?&gt; </code></pre> <p>is there is any efficient way??</p>
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    1. USsaddam hossain
    1. USsaddam hossain
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      1. VTUpMod
    1. CO**Danger**: You are using [an **obsolete** database API](http://stackoverflow.com/q/12859942/19068) and should use a [modern replacement](http://php.net/manual/en/mysqlinfo.api.choosing.php). You are also **vulnerable to [SQL injection attacks](http://bobby-tables.com/)** that a modern API would make it easier to [defend](http://stackoverflow.com/questions/60174/best-way-to-prevent-sql-injection-in-php) yourself from.
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      1. USQuentin
    2. COI suggest using jQuery for ajax-calls. This will make things a lot easier. You can find more info on [jQuery.ajax()](http://api.jquery.com/jQuery.ajax/)
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      1. UScumul
    3. COThis value var id=ex[ex.selectedIndex].id; ...try put an alert below, like alert(id) ....i think that value is empty
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      1. USHackerman
 

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