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POJavascript refreshing page, I can't tell why
 

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  1. POJavascript refreshing page, I can't tell why
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    <p>I'm a newbie to javascript (or web development of any sort, really), and having trouble tracking down a bug. Basically pressing the "Route (desktop version)" button <a href="http://domuirgheasa.com/testdirectory/GoFuel.html" rel="nofollow">here</a> should trigger a function, calcRoutePartOne(), which it does. </p> <pre><code>function calcRoutePartOne() { alert("calcRoutePartOne"); shortestTimeIndex = "undefined"; lowestTotalCost = "undefined"; shortestDistanceIndex = "undefined"; shortestDistance = "undefined"; alert("Alert B"); displayLoadingImage(); alert("Alert C"); var startText = document.getElementById("start").value; alert(startText); geocoder.geocode( { 'address':startText }, function(results, status) { if (status == google.maps.GeocoderStatus.OK) { start = results[0].geometry.location; alert(start); calcRoutePartTwo(); } else { alert("Failed to geocode start address \n Error: " + status); hideLoadingImage(); } }); } </code></pre> <p>This function executes fine for me, all the alerts firing off as they should, but then instead of calling calcRoutePartTwo() the page just refreshes [<strong>edit:</strong> Now it's sometimes getting to calcRoutePartTwo and THEN refreshing, which is also not what it should be doing].</p> <p>Particularly puzzling is that I've had this code working before - at the moment I'm just refactoring, and working on the UI, so I don't understand how this has suddenly started happening.</p> <p>The code I'm having a problem with I have available <a href="http://domuirgheasa.com/testdirectory/GoFuel.html" rel="nofollow">here</a>. I also have the previously working code, which is practically identical apart from the UI, <a href="http://domuirgheasa.com/SOFA.html" rel="nofollow">here</a></p> <p>The problem has only started since I started using jquery, so I wonder is there some error in jquery which causes this behaviour? The page shouldn't refresh at all, at any point - as the code stands, it should redirect to google after reaching the end </p> <p>Thanks.</p> <p><strong>EDIT</strong>: This is the possibly-offending function:</p> <pre><code>function calcRoutePartTwo() { alert("calcRoutePartTwo"); var endText = document.getElementById("end").value; geocoder.geocode( { address: endText }, function(results, status) { if (status == google.maps.GeocoderStatus.OK) { end = results[0].geometry.location; console.log(end); calcRoutePartThree(); } else { alert("Failed to geocode end address \n Error: " + status); hideLoadingImage(); } }); } </code></pre> <p>Or the problem could, I guess, be almost anywhere else on the page either. I just have no idea.</p>
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