blankwin = function(){
		var hostname = window.location.hostname;
		hostname = hostname.replace("www.","").toLowerCase();
		var a = document.getElementsByTagName("a");	
		this.check = function(obj){
			var href = obj.href.toLowerCase();
			return ((href.indexOf("http://")!=-1 || href.indexOf("https://")!=-1) && href.indexOf(hostname)==-1) ? true : false;
		};
		this.set = function(obj){
			obj.target = "_blank";
		};	
		for (var i=0;i<a.length;i++){
			if(check(a[i])) set(a[i]);
		};		
	};
	
	this.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);
		};
	};
	
	addEvent(window,"load",blankwin);