function show_menu1(a,b){
	document.getElementById(b).style.color="#45AFFD";
  document.getElementById(a).style.height="300px";	
  clearInterval(intervalId);
}
function close_menu(a,b){
	document.getElementById(b).style.color="";
  	document.getElementById(a).style.height="0px";
	clearInterval(intervalId);
}
var intervalId;
function show_menu(a){
 as=a;
 ah=300;
 if(parseInt(document.getElementById(as).style.height)<=0){
   intervalId=setInterval("a1(as,ah)",10);
 }
}
function a1(b,h){
 if(parseInt(document.getElementById(b).style.height)<h){
   document.getElementById(b).style.height=parseInt(document.getElementById(b).style.height)+10+"px";;
   }else{
    clearInterval(intervalId);
   }
}



function change_div(a,b){
  document.getElementById(a).style.display="none";	
  document.getElementById(b).style.display="";	
}


/*function change_book(a1,b1,a2,b2,a3,b3,a4,b4,div_name){
	document.getElementById(a2).innerHTML="<table width='100%' border='0' cellpadding='0' cellspacing='0'><tr><td width='3'><img src='{$skindir}/image/book_now_left.jpg' /></td><td width='100%' background='{$skindir}/image/book_now_bg.jpg'><div class='book_menu_div'>"+b2+"</div></td><td width='3'><img src='{$skindir}/image/book_now_right.jpg' /></td></tr></table>";
	document.getElementById(a3).innerHTML="<table width='100%' border='0' cellpadding='0' cellspacing='0'><tr><td width='3'><img src='{$skindir}/image/book_now_left.jpg' /></td><td width='100%' background='{$skindir}/image/book_now_bg.jpg'><div class='book_menu_div'>"+b3+"</div></td><td width='3'><img src='{$skindir}/image/book_now_right.jpg' /></td></tr></table>";
    document.getElementById(a4).innerHTML="<table width='100%' border='0' cellpadding='0' cellspacing='0'><tr><td width='3'><img src='{$skindir}/image/book_now_left.jpg' /></td><td width='100%' background='{$skindir}/image/book_now_bg.jpg'><div class='book_menu_div'>"+b4+"</div></td><td width='3'><img src='{$skindir}/image/book_now_right.jpg' /></td></tr></table>";
    for(i=1;i<=4;i++){
		document.getElementById("book_div"+i).style.display="none";
	}
	
    document.getElementById(div_name).style.display="";
	document.getElementById(a1).innerHTML="<table width='100%' border='0' cellpadding='0' cellspacing='0'><tr><td width='2'><img src='{$skindir}/image/book_left.jpg' /></td><td width='100%' background='{$skindir}/image/book_bg.jpg'><div class='book_menu_div'>"+b1+"</div></td><td width='2'><img src='{$skindir}/image/book_right.jpg' /></td></tr></table>";
}*/
function second_menu(a){
	if(document.getElementById(a).style.display==""){
	 	document.getElementById(a).style.display="none";
	}else{
		document.getElementById(a).style.display="";
	}
}