// checks refering sites for scotland domain and prompts user accordingly

refererhandler = {
		
	init: function() {
		if(!document.referrer) return;
		
		domains=new Array();
		domains[0]="wrapscotland.org.uk";
		domains[1]="wrapcymru.org.uk";
				
		for(i=0;i<domains.length;i++){
			if(document.referrer.indexOf(domains[i]) > -1){	
				var refererwarn = document.createElement("div");
				refererwarn.id="refererwarning";
				refererwarn.innerHTML='You are now on wrap.org.uk.  If you wish, you can go <a href="'+document.referrer+'">back to '+domains[i]+'</a>';
				
				var wrapper=document.getElementById("wrapper");
				var wrapperParent=wrapper.parentNode;
				wrapperParent.insertBefore(refererwarn, wrapper);
				wrapperParent.style.marginTop="25px";
			}
		}
	},

	addEvent: function( obj, type, fn ) {
		if ( obj.attachEvent ) {
			obj['e'+type+fn] = fn;
			obj[type+fn] = function(){obj['e'+type+fn]( window.event );}
			obj.attachEvent( 'on'+type, obj[type+fn] );
		} else {
			obj.addEventListener( type, fn, false );
		}
	}
}

refererhandler.addEvent(window,"load",refererhandler.init);