if(document.images){
	//2_0
	var sn_1_1_over=new Image(); sn_1_1_over.src="/img/sn_1_1_over.gif";
	var sn_1_1_off=new Image(); sn_1_1_off.src="/img/sn_1_1_off.gif";
	var sn_1_2_over=new Image(); sn_1_2_over.src="/img/sn_1_2_over.gif";
	var sn_1_2_off=new Image(); sn_1_2_off.src="/img/sn_1_2_off.gif";
	var sn_1_3_over=new Image(); sn_1_3_over.src="/img/sn_1_3_over.gif";
	var sn_1_3_off=new Image(); sn_1_3_off.src="/img/sn_1_3_off.gif";
	var sn_1_13_over=new Image();sn_1_13_over.src="/img/sn_1_13_over.gif";
	var sn_1_13_off=new Image();sn_1_13_off.src="/img/sn_1_13_off.gif";
	var sn_1_12_over=new Image(); sn_1_12_over.src="/img/sn_1_12_over.gif";
	var sn_1_12_off=new Image(); sn_1_12_off.src="/img/sn_1_12_off.gif";			
	var sn_1_5_over=new Image(); sn_1_5_over.src="/img/sn_1_5_over.gif";
	var sn_1_5_off=new Image(); sn_1_5_off.src="/img/sn_1_5_off.gif";
	var sn_1_6_over=new Image(); sn_1_6_over.src="/img/sn_1_6_over.gif";
	var sn_1_6_off=new Image(); sn_1_6_off.src="/img/sn_1_6_off.gif";	
	
	/*
	var sn_1_4_over=new Image(); sn_1_4_over.src="/img/sn_1_4_over.gif";
	var sn_1_4_off=new Image(); sn_1_4_off.src="/img/sn_1_4_off.gif";
	var sn_1_7_over=new Image(); sn_1_7_over.src="/img/sn_1_7_over.gif";
	var sn_1_7_off=new Image(); sn_1_7_off.src="/img/sn_1_7_off.gif";	
	var sn_1_8_over=new Image(); sn_1_8_over.src="/img/sn_1_8_over.gif";
	var sn_1_8_off=new Image(); sn_1_8_off.src="/img/sn_1_8_off.gif";
	var sn_1_9_over=new Image(); sn_1_9_over.src="/img/sn_1_9_over.gif";
	var sn_1_9_off=new Image(); sn_1_9_off.src="/img/sn_1_9_off.gif";
	*/

	
}