var vSubmitCount = 0;
function ld_checkSubmit()
{
	if (vSubmitCount == 0)
	{
		vSubmitCount++;
		setTimeout ( "ld_resetSubmit()", 1500 );
		return true;
	}
	else
	{
		alert("Response already submitted. Please wait.");
		return false;
	}
}
function ld_resetSubmit()
{
	vSubmitCount = 0;
}

function LD_closeSurveyWindow() 
{	

	try 
	{
	  	if (window.opener && !window.opener.closed)
		{
		  	if (window.opener.document)
			{
			  	if (window.opener.document["interviewList"])
				{
			  	  	window.opener.document["interviewList"].elements["Refresh"].click();
				}
			}
		}
	}
	catch(e){}
	
	setTimeout('LD_nocloseSurveyWindow()', 500);
 	self.close();
} 
function LD_nocloseSurveyWindow() 
{	
	alert("Unfortunately your browser does not allow us to close the window. Please close the window using the normal close control.");
}