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onclick event requires double click to load

Posted on 2009-06-28
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Medium Priority
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Last Modified: 2012-05-07
I have an onclick event handler which runs a script to test if and element id has innerHTML == nothing.  Problem is when I click on a table row it requires a double click to load the innerHTML of the call.  Hope this makes sense as I am knew to javscript.
<script>
function loadHub(id, jid){
	var testLoad = document.getElementById('loadDiv' + id);
	if(testLoad.innerHTML == '') {
		loadJob(id, jid);
	} else {
		unloadJob(id);
	}
}
	
	
function loadJob(id, jid){
	var ajaxRequest;  // The variable that makes Ajax possible!
	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('loadDiv' + id);
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
 
		}
	}
	var queryString = "?id=" + id + "&jid=" + jid;
	ajaxRequest.open("GET", "loadjob.php" + queryString, true);
	ajaxRequest.send(null); 
}
 
function unloadJob(id){
	var ajaxClose = document.getElementById('loadDiv' + id);
	ajaxClose.innerHTML = "";
 
}
</script>
 
<?php
while($rows=mysql_fetch_array($result)){
	$jid = $rows['JID'];
    $cid = $rows['CID'];
$total = mysql_num_rows($result);
if(is_odd($i)){
echo "<tr class = 'odd' onclick='loadHub($i, $jid)'>";
} else {
echo "<tr onclick='loadHub($i, $jid)'>";
}
echo"<td>".$rows['JID']."</td>
     <td>".$rows['CID']."</td>
     <td class = 'bunked'><ul><li>".$rows['pname']."</li>
	 						  <li class = 'bunked'>".$rows['zname']."</li></ul></td>
	 <td class = 'bunked'><ul><li>".$rows['name']."</li>
	 						  <li class = 'bunked'>".$rows['address']."</li></ul></td>
	 <td class = 'bunked'><ul><li>".formatPhone($rows['home'])."</li>
	 						  <li class = 'bunked'>".formatPhone($rows['cell'])."</li></ul></td>
     <td>".$rows['summary']."</td>
  	 </tr>";
	 if(is_odd($i)){
			echo "<tr class = 'odd' onclick='loadJob($i, $jid)'>";
		} else {
			echo "<tr onclick='loadJob($i, $jid)'>";
		}
	 if(strlen($rows['description']) < 200) {
	 echo "<td colspan = '6'>".nl2br($rows['description'])."</td>";
	 } else {
	 echo "<td colspan = '6'>See Full Description</tr>"; 
	 }
	 echo"</tr>
	 <tr class='space'><td id = 'space".$i."' colspan = '11'><div id = 'loadDiv".$i."'> </div></td></tr>";
	 
	  
$i++;
}
?>

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Question by:cone13cone
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3 Comments
 
LVL 12

Assisted Solution

by:Chad Haney
Chad Haney earned 400 total points
ID: 24733604
it is taking a double click to work because the first click it is not = '', it is null or nothing.  So your code is setting the value to '' on the first click then the second click it will respond.  try flipping the check as follows

function loadHub(id, jid){
        var testLoad = document.getElementById('loadDiv' + id);
        if(testLoad.innerHTML != '') {
               unloadJob(id);
        } else {
               loadJob(id, jid);
        }
}

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Author Comment

by:cone13cone
ID: 24751164
Dachusa the above did not work, its still require a dbl click the first time to load. =\
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Accepted Solution

by:
cone13cone earned 0 total points
ID: 24751170
This fixed it, thanks.
function loadHub(id, jid, cid){
        var testLoad = document.getElementById('loadDiv' + id);
        if(!testLoad.innerHTML) {
               unloadJob(id);
        } else {
               loadJob(id, jid, cid);
        }
}

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