function atabpaneclass() {	
	function atabpage(astr){
		for (i=1;i<=3;i++){
			document.getElementById('atabpage'+i).style.display="none";
			document.getElementById('atabh4'+i).className="atab2"+'_link'+i+"_out";
		}
		document.getElementById('atabpage'+astr).style.display="block";
	}
	for (i=1;i<=3;i++){	
		document.getElementById('atabh4'+i).onmouseover=function(e) {
			atabpage(this.id.charAt(6));
			this.className=this.id;
		}
		document.getElementById('atabh4'+i).onfocus=function(e) {
			atabpage(this.id.charAt(6));
			this.className=this.id;
		}
	}
}
var atab=new atabpaneclass();