function scrollBanner( target ){
	this.target = document.getElementById( target );
	
	this.width = 160;
	this.count = 8;
	
	this.left = 0;
	this.timer = null;
}

scrollBanner.prototype.set = function(){

	for( var i = 0, j = this.target.childNodes.length; i<j; i++ ){

		if( i != 0 ){
			this.left += this.width;
		}
		
		this.target.childNodes[i].style.left = this.left + "px";
		
	}
	
}

scrollBanner.prototype.init = function(){
	
	var self = this;
	this.timer = setInterval(function(){ self.run(); }, 70);		
	
}

scrollBanner.prototype.run = function(){
	
	for( var i = 0, j = this.target.childNodes.length; i<j; i++ ){

		var left = parseInt(this.target.childNodes[i].style.left);
		var width = this.target.childNodes[i].firstChild.width;
		
		this.target.childNodes[i].style.left = (left + -5) + "px";

		if( left == -this.width ){
			this.target.childNodes[i].style.left = (this.width * (this.count-1)) + "px";
		}
		
	}	
	
}

scrollBanner.prototype.stop = function(){
	
	clearInterval( this.timer );
	this.timer = null;
	
}

var sb = new scrollBanner( "target" );
sb.target.innerHTML += '<div><a href="http://www.mke.go.kr/language/eng/index.jsp" target="_blank"><img src="../images/main/banner01.gif" width="160" height="26" border="0"/></a></div>';
sb.target.innerHTML += '<div><a href="http://www.kier.re.kr/open_content/eng/main_page.jsp" target="_blank"><img src="../images/main/banner02.gif" width="160" height="26" border="0"/></a></div>';
sb.target.innerHTML += '<div><a href="http://www.keei.re.kr/main.nsf/index_en.html" target="_blank"><img src="../images/main/banner03.gif" width="160" height="26" border="0"/></a></div>';
sb.target.innerHTML += '<div><a href="http://unfccc.int/2860.php" target="_blank"><img src="../images/main/banner04.gif" width="160" height="26" border="0"/></a></div>';
sb.target.innerHTML += '<div><a href="http://www.iea.org/" target="_blank"><img src="../images/main/banner05.gif" width="160" height="26" border="0"/></a></div>';
sb.target.innerHTML += '<div><a href="http://www.apec.org/" target="_blank"><img src="../images/main/banner06.gif" width="160" height="26" border="0"/></a></div>';
sb.target.innerHTML += '<div><a href="http://www.ewg.apec.org/" target="_blank"><img src="../images/main/banner07.gif" width="160" height="26" border="0"/></a></div>';
sb.target.innerHTML += '<div><a href="http://eng.nre-korea.or.kr/" target="_blank"><img src="../images/main/banner08.gif" width="160" height="26" border="0"/></a></div>';
sb.set();
sb.init();