function winmail(href)
{
	var scr = {
		width:	screen.availWidth,
		height:	screen.availHeight
	};
	var win = {
		width:	750,
		height:	650
	};
	window.open(href, 'write_letter', 'left=' + ((scr.width-win.width)/2) + ',top=' + ((scr.height-win.height)/2) + ',width=' + win.width + ',height=' + win.height + ',resizable=yes').focus();
	return false;
}

/**
 * popup with send pdf form
 */
function winpdf(href)
{
	var scr = {
		width:	screen.availWidth,
		height:	screen.availHeight
	};
	var win = {
		width:	750,
		height:	650
	};
	window.open(href, 'send_pdf', 'left=' + ((scr.width-win.width)/2) + ',top=' + ((scr.height-win.height)/2) + ',width=' + win.width + ',height=' + win.height + ',resizable=yes').focus();
	return false;
}