function framechange(n){
      switch(n) {
      case 1:
		document.getElementById('frame').src = "big01.html";
		document.getElementById('frm_big').src = "img/ESP07-24781A.jpg";
		document.getElementById('btn01').src = "parts/btn_big5_01_o.gif";
		document.getElementById('btn02').src = "parts/btn_big5_02.gif";
		document.getElementById('btn03').src = "parts/btn_big5_03.gif";
		document.getElementById('btn04').src = "parts/btn_big5_04.gif";
		document.getElementById('btn05').src = "parts/btn_big5_05.gif";
		break;
      case 2:
		document.getElementById('frame').src = "big02.html";
		document.getElementById('frm_big').src = "img/ESP07-24783A.jpg";
		document.getElementById('btn01').src = "parts/btn_big5_01.gif";
		document.getElementById('btn02').src = "parts/btn_big5_02_o.gif";
		document.getElementById('btn03').src = "parts/btn_big5_03.gif";
		document.getElementById('btn04').src = "parts/btn_big5_04.gif";
		document.getElementById('btn05').src = "parts/btn_big5_05.gif";
		break;
      case 3:
		document.getElementById('frame').src = "big04.html";
		document.getElementById('frm_big').src = "img/EBP07-28942B.jpg";
		document.getElementById('btn01').src = "parts/btn_big5_01.gif";
		document.getElementById('btn02').src = "parts/btn_big5_02.gif";
		document.getElementById('btn03').src = "parts/btn_big5_03_o.gif";
		document.getElementById('btn04').src = "parts/btn_big5_04.gif";
		document.getElementById('btn05').src = "parts/btn_big5_05.gif";
		break;
      case 4:
		document.getElementById('frame').src = "big03.html";
		document.getElementById('frm_big').src = "img/ESP07-24784A.jpg";
		document.getElementById('btn01').src = "parts/btn_big5_01.gif";
		document.getElementById('btn02').src = "parts/btn_big5_02.gif";
		document.getElementById('btn03').src = "parts/btn_big5_03.gif";
		document.getElementById('btn04').src = "parts/btn_big5_04_o.gif";
		document.getElementById('btn05').src = "parts/btn_big5_05.gif";
		break;
      case 5:
		document.getElementById('frame').src = "big05.html";
		document.getElementById('frm_big').src = "img/ESP07-24785A.jpg";
		document.getElementById('btn01').src = "parts/btn_big5_01.gif";
		document.getElementById('btn02').src = "parts/btn_big5_02.gif";
		document.getElementById('btn03').src = "parts/btn_big5_03.gif";
		document.getElementById('btn04').src = "parts/btn_big5_04.gif";
		document.getElementById('btn05').src = "parts/btn_big5_05_o.gif";
		break;
      case 6:
		document.getElementById('frame').src = "big06.html";
		document.getElementById('frm_big').src = "img/ESP07-24786A.jpg";
		document.getElementById('btn01').src = "parts/btn_big5_01.gif";
		document.getElementById('btn02').src = "parts/btn_big5_02.gif";
		document.getElementById('btn03').src = "parts/btn_big5_03.gif";
		document.getElementById('btn04').src = "parts/btn_big5_04.gif";
		document.getElementById('btn05').src = "parts/btn_big5_05.gif";
		break;
		    case 7:
		document.getElementById('frame').src = "big07.html";
		document.getElementById('frm_big').src = "img/ESP07-24787A.jpg";
		document.getElementById('btn01').src = "parts/btn_big5_01.gif";
		document.getElementById('btn02').src = "parts/btn_big5_02.gif";
		document.getElementById('btn03').src = "parts/btn_big5_03.gif";
		document.getElementById('btn04').src = "parts/btn_big5_04.gif";
		document.getElementById('btn05').src = "parts/btn_big5_05.gif";
		break;
		    case 8:
		document.getElementById('frame').src = "big08.html";
		document.getElementById('frm_big').src = "img/ESP07-24788A.jpg";
		document.getElementById('btn01').src = "parts/btn_big5_01.gif";
		document.getElementById('btn02').src = "parts/btn_big5_02.gif";
		document.getElementById('btn03').src = "parts/btn_big5_03.gif";
		document.getElementById('btn04').src = "parts/btn_big5_04.gif";
		document.getElementById('btn05').src = "parts/btn_big5_05.gif";
		break;
		    case 9:
		document.getElementById('frame').src = "big09.html";
		document.getElementById('frm_big').src = "img/ESP07-24789A.jpg";
		document.getElementById('btn01').src = "parts/btn_big5_01.gif";
		document.getElementById('btn02').src = "parts/btn_big5_02.gif";
		document.getElementById('btn03').src = "parts/btn_big5_03.gif";
		document.getElementById('btn04').src = "parts/btn_big5_04.gif";
		document.getElementById('btn05').src = "parts/btn_big5_05.gif";
		break;
		    case 10:
		document.getElementById('frame').src = "big10.html";
		document.getElementById('frm_big').src = "img/ESP07-24790A.jpg";
		document.getElementById('btn01').src = "parts/btn_big5_01.gif";
		document.getElementById('btn02').src = "parts/btn_big5_02.gif";
		document.getElementById('btn03').src = "parts/btn_big5_03.gif";
		document.getElementById('btn04').src = "parts/btn_big5_04.gif";
		document.getElementById('btn05').src = "parts/btn_big5_05.gif";
		break;
		    case 11:
		document.getElementById('frame').src = "big11.html";
		document.getElementById('frm_big').src = "img/ESP07-24791A.jpg";
		document.getElementById('btn01').src = "parts/btn_big5_01.gif";
		document.getElementById('btn02').src = "parts/btn_big5_02.gif";
		document.getElementById('btn03').src = "parts/btn_big5_03.gif";
		document.getElementById('btn04').src = "parts/btn_big5_04.gif";
		document.getElementById('btn05').src = "parts/btn_big5_05.gif";
		break;
		    case 12:
		document.getElementById('frame').src = "big12.html";
		document.getElementById('frm_big').src = "img/ESP07-24792A.jpg";
		document.getElementById('btn01').src = "parts/btn_big5_01.gif";
		document.getElementById('btn02').src = "parts/btn_big5_02.gif";
		document.getElementById('btn03').src = "parts/btn_big5_03.gif";
		document.getElementById('btn04').src = "parts/btn_big5_04.gif";
		document.getElementById('btn05').src = "parts/btn_big5_05.gif";
		break;
		    case 13:
		document.getElementById('frame').src = "big13.html";
		document.getElementById('frm_big').src = "img/ESP07-24793A.jpg";
		document.getElementById('btn01').src = "parts/btn_big5_01.gif";
		document.getElementById('btn02').src = "parts/btn_big5_02.gif";
		document.getElementById('btn03').src = "parts/btn_big5_03.gif";
		document.getElementById('btn04').src = "parts/btn_big5_04.gif";
		document.getElementById('btn05').src = "parts/btn_big5_05.gif";
		break;
      default:
		 document.getElementById('frame').src = "big01.html";
			document.getElementById('frm_big').src = "img/afuricazou.jpg";
			document.getElementById('btn01').src = "parts/btn_big5_01_o.gif";
		 document.getElementById('btn02').src = "parts/btn_big5_02.gif";
		 document.getElementById('btn03').src = "parts/btn_big5_03.gif";
		 document.getElementById('btn04').src = "parts/btn_big5_04.gif";
		 document.getElementById('btn05').src = "parts/btn_big5_05.gif";
		break;
      }
}