function hkAff() {
	var eVooAffs = [
			64701, // mosca
			80704, // novelli
			1022 , //edgard
			64164  //alexcmag
		];
	var timestamp =  Math.round(new Date().getTime() / 1000);
	var eVooAff = eVooAffs[timestamp % eVooAffs.length];
	var links = document.getElementsByTagName("a");
	for(var i=0;i<links.length;i++) {
		var src = links[i].href;
		if(src.match(/himodel\.com/)) {
			if(!src.match(/affiliate=/)) {
				if(src.match(/\?/)) {
					src+= '&affiliate=forumevoo';
				} else {
					src+= '?affiliate=forumevoo';
				}
			}
			links[i].href = src;
		} 
		else
		if(src.match(/(hobbyking|unitedhobbies|hobbycity)\.com/)) {
			if(!src.match(/aff=/)) {
				if(src.match(/\?/)) {
					src+= '&aff='+eVooAff;
				} else {
					src+= '?aff='+eVooAff;
				}
			}
			links[i].href = src;
		}  
		else 
		if(src.match(/rc-fever\.com/)) {
			if(!src.match(/ref=/)) {
				if(src.match(/\?/)) {
					src+= '&ref=8';
				} else {
					src+= '?ref=8';
				}
			}
			links[i].href = src;
		}
	}
	return true;
}