function externalLinks() 
	{	
	if (!document.getElementsByTagName) return; 
 	var anchors = document.getElementsByTagName("a"); 
 	for (var i=0; i<anchors.length; i++)
		{ 
   		var anchor = anchors[i]; 
   		if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "blank")anchor.target = "_blank"; 
		} 
	} 

function orderForm() 
	{	
	if ($('form#orderform').length)
		{
		var form = $('form#orderform') ;
		var count=0;
		$.each(form.find(".group input:checkbox:checked"),function(){ count++; });
		form.find(".group input:checkbox").click(function(){
			if($(this).is(":checked"))
				{
				if(count>=2)
					{
					alert("Es können nur maximal 2 Kataloge auf einmal bestellt werden");
					$(this).removeAttr("checked");
					}
				else if(form.find(".group input:checked").val())
					count++;
				}
			else count--;
			});
		}
	} 

$(document).ready(function(){
	externalLinks();
	orderForm();
});