function iniTargetBlank(qualifier, filter){
	var cls = filter || '';
	for(var i=0; qualifier[i]; i++){
		if(qualifier[i].className.match(cls)){
			qualifier[i].target = '_blank';
		}
	}
}

window.onload = function(){
	iniTargetBlank(document.getElementById('linkcat-4').getElementsByTagName('a'));
}