Using Ctrl+F5 : .timepicker null and _newInst not called about jquery-timepicker-addon

[mlaffargue]

As my framework won't allow me to put specific page script in header. To load script in header I use :
var fileref=document.createElement('script')
fileref.setAttribute("type","text/javascript")
fileref.setAttribute("src", filename)
document.getElementsByTagName("head")[0].appendChild(fileref);

Usually I put this in top of my specific page :
loadjscssfile("/jquery-ui-1.8.4.custom.min.js", "js");
loadjscssfile("/jquery-ui-timepicker-addon.js", "js");

Well I just found out that if I don't put too close the jquery-ui and datetimepicker js using :

• setTimeout('loadjscssfile("/jquery-ui-timepicker-addon.js", "js");',10);
• Or putting the load later in the code, the error disappear ....
  Not sure what's going on, since the timeout method seems to me kind of random (need it to be loaded not immediately but at least before I use it ...). I'll just put the load later in the code.

Is there some kind of asynchronous loading of scripts ?

[mlaffargue]

Finally found out :
Using this crashes with $.datepicker being null [Using Ctrl+F5 and randomly using F5]
loadjscssfile("/jquery-ui-1.8.4.custom.min.js", "js");
loadjscssfile("/jquery-ui-timepicker-addon.js", "js");

However using this works...
<script language="javascript" src="/jquery-ui-1.8.6.custom.min.js"></script>
loadjscssfile("/jquery-ui-timepicker-addon.js", "js");