function isSpace(checkStr)
{
	if(checkStr.substring(0,1)==' ')
	var result=true;
	else
	var result=false;
return result;
}

function isEmpty(checkStr)
{

	if(checkStr=='')
	var result=true;
	else
	var result=false;
return result;
}

function cancel(cancel_url)
{
  window.location.href=cancel_url;
}