$(document).ready(function(){
		$('#registration_checkbox').click(function() { if(this.checked == true) { $('#registration_send').attr('disabled', ''); } else { $('#registration_send').attr('disabled', 'disabled'); }; });
	});
	
	function popup_start()
		{
			var docwidth = $(document).width();
			//alert(docwidth);
			leftmargin = (docwidth - 500) / 2;
			$('#wrapper').append('<div style="width:100%;height:100%;position:absolute;top:0px;left:0px;border:0px solid red;background-color:#000000;opacity:0.4;filter:alpha(opacity=40);" id="ax_popup_bg"></div>');
			$('#wrapper').append('<div style="width:520px;position:absolute;top:100px;left:'+leftmargin+'px;border:0px solid red;background-color:#ffffff;text-align:left;padding:20px;" id="ax_popup"></div>');
			$.ajax({
				url: "modules_extra/ax/popup.php",
				cache: false,
				success: function(html){
				  $("#ax_popup").append(html);
				}
			});
		}

	function popup_close()
		{
			$('#ax_popup_bg').remove();
			$('#ax_popup').remove();
		}