function openlist_chitiet(divID,list_n,list_c,img_n,img) {
	if(document.getElementById(divID)){
		if(document.getElementById(divID).style.display=='block'){
			document.getElementById(divID).style.display='none'; 
			document.getElementById(img).src='images/img_xuong.png';
		}else{
			document.getElementById(divID).style.display='block'; 
			document.getElementById(img).src='images/img_len.png';
		}
	}
	
	for(i=1;i<=list_c;i++){
		close_div=list_n + i;
		close_img=img_n+i;
		if(close_div!=divID){
			if(document.getElementById(close_div)){
				document.getElementById(close_div).style.display='none';
				document.getElementById(close_img).src='images/img_xuong.png';
			}
		}
	}
}