View source for Hide Next button in n seconds

== Challenge  ==

In order to not allow respondent click on the Next button in a period of time<br>As a questionnaire creator<br>I want to hide the Next button in some seconds&nbsp;

== Solution  ==

*In questionnaire template editor, choose the&nbsp;question&nbsp;I want to hide the Next button,&nbsp;and then&nbsp;go to the Properties - Edit question properties - Language dependent - Select javascript property&nbsp; 
*Create a onInit() function. 
*In that function, check if the Next button existed.&nbsp; 
*If it doesn't exist, do nothing, else disable the Next button, set the time&nbsp;out to number of seconds&nbsp;I want to hide the&nbsp;button, then show the button again.&nbsp;&nbsp;

== Code  ==
<source lang="javascript">
quest.onInit = function()
{
	var secsTimeout = 10;
	if ( !document.getElementsByName('next') || document.getElementsByName('next').length == 0 ) 
		// next button not available
		return;
	document.getElementsByName('next')[0].style.display='none';
	setTimeout("document.getElementsByName('next')[0].style.display=", secsTimeout*1000);
} 
</source>