var arr_imgs=new Array();
 var arr_submenu_imgs=new Array();
 var arr_submenu_imgs_is_loaded=false;
 var d=document;
 function init() {
 	  arr_imgs[1]=new Array();
 	  arr_imgs[1]['up']=new Image();
 	  arr_imgs[1]['up'].src='../images/btn-1-up.gif';
 	  arr_imgs[1]['down']=new Image();
 	  arr_imgs[1]['down'].src='../images/btn-1-down.gif';

	  arr_imgs[2]=new Array();
 	  arr_imgs[2]['up']=new Image();
 	  arr_imgs[2]['up'].src='../images/btn-2-up.gif';
 	  arr_imgs[2]['down']=new Image();
 	  arr_imgs[2]['down'].src='../images/btn-2-down.gif';

	  arr_imgs[4]=new Array();
 	  arr_imgs[4]['up']=new Image();
 	  arr_imgs[4]['up'].src='../images/btn-4-up.gif';
 	  arr_imgs[4]['down']=new Image();
 	  arr_imgs[4]['down'].src='../images/btn-4-down.gif';

	  arr_imgs[5]=new Array();
 	  arr_imgs[5]['up']=new Image();
 	  arr_imgs[5]['up'].src='../images/btn-5-up.gif';
 	  arr_imgs[5]['down']=new Image();
 	  arr_imgs[5]['down'].src='../images/btn-5-down.gif';

	  arr_imgs[6]=new Array();
 	  arr_imgs[6]['up']=new Image();
 	  arr_imgs[6]['up'].src='../images/btn-6-up.gif';
 	  arr_imgs[6]['down']=new Image();
 	  arr_imgs[6]['down'].src='../images/btn-6-down.gif';

	  arr_imgs[7]=new Array();
 	  arr_imgs[7]['up']=new Image();
 	  arr_imgs[7]['up'].src='../images/btn-7-up.gif';
 	  arr_imgs[7]['down']=new Image();
 	  arr_imgs[7]['down'].src='../images/btn-7-down.gif';

 }
 
 
 function down_btn(num){
 	 d.getElementById('btn_'+num).src=arr_imgs[num]['down'].src;
 }

 function up_btn(num){
 	 d.getElementById('btn_'+num).src=arr_imgs[num]['up'].src;
 }

 function down_subbtn(num){
 	 if (arr_submenu_imgs_is_loaded)
 	 d.getElementById('submenu_btn_'+num).src=arr_submenu_imgs[num]['down'].src;
 }

function up_subbtn(num){
	if (arr_submenu_imgs_is_loaded)
 	 d.getElementById('submenu_btn_'+num).src=arr_submenu_imgs[num]['up'].src;
 }