function topBtnChg(int){

	var num = int;
	
		switch(num){
	    case 1:
	        document.rogo.src='img/rogo_over.jpg';
	        break;
	    case 2:
	        document.rogo.src='img/rogo_off.jpg';
	        break;
	    case 3:
	        document.service.src='img/sa_over.jpg';
	        break;
	    case 4:
	        document.service.src='img/sa_off.jpg';
	        break;
	    case 5:
	        document.co.src='img/co_over.jpg';
	        break;
	    case 6:
	        document.co.src='img/co_off.jpg';
	        break;
	    case 7:
	        document.rec.src='img/re_over.jpg';
	        break;
	    case 8:
	        document.rec.src='img/re_off.jpg';
	        break;
	    case 9:
	        document.access.src='img/ac_over.jpg';
	        break;
	    case 10:
	        document.access.src='img/ac_off.jpg';
	        break;
	    case 11:
	        document.inq.src='img/inq_over.jpg';
	        break;
	    case 12:
	        document.inq.src='img/inq_off.jpg';
	        break;
	    default:
	        break;
	    }
}