function checkemail()
{
	
	cmail=f1.txtemail.value
	if(cmail.length<=0)
	{
	alert("Confirm  E-mail Address.")
	f1.txtemail.focus()
	return false
	}
}
function nwimg(u,w,h)
{
    nwind1=window.open(u,"showimgwindow",'width='+w+',height='+h+',toolbar=YES,menubar=yes,location=no,directories=no,status=no,scrollbars=yes,resizable=yes,copyhistory=no');
    if(nwind1.closed)
    {
        nwind1=window.open(u,"showimgwindow",'width='+w+',height='+h+',toolbar=YES,menubar=yes,location=no,directories=no,status=no,scrollbars=yes,resizable=yes,copyhistory=no');
        nwind1.moveTo(100,100)

    }
    else
    {
        nwind1.close()
        nwind1=window.open(u,"showimgwindow",'width='+w+',height='+h+',toolbar=YES,menubar=yes,location=no,directories=no,status=no,scrollbars=yes,resizable=yes,copyhistory=no');
        nwind1.moveTo(100,100)

    }
}