// JavaScript Document

var y=1;
var flag=true;

function showTab(sid){
//alert(sid);
//alert(flag);
	if ((sid>0)&&(flag))
	{
	flag=false;
	y=sid;
	}
	if (y==5)
	{
	y=0;
	}
y++;
doTab(y);
}

function doTab(layerName){ 
 document.getElementById('tab_1').background='/image/part2_qh2_off.gif';
 document.getElementById('tab_2').background='/image/part2_qh2_off.gif';
 document.getElementById('tab_3').background='/image/part2_qh2_off.gif';
 document.getElementById('tab_4').background='/image/part2_qh2_off.gif';
 document.getElementById('tab_5').background='/image/part2_qh2_off.gif';
 
 document.getElementById('detail_1').style.display='none';
 document.getElementById('detail_2').style.display='none';
 document.getElementById('detail_3').style.display='none';
 document.getElementById('detail_4').style.display='none';
 document.getElementById('detail_5').style.display='none';
 
  eval('document.getElementById('+ "'tab_" + layerName + "'" +').background="image/part2_qh2_on.gif"');
  eval('document.getElementById('+ "'detail_" + layerName + "'" +').style.display = "block"');
  
 }

function goTabNext(xid){
flag=true;
timer=setInterval('showTab('+xid+')',tabdelaytime);
}


function doRightTab(layerName){ 
  document.getElementById('right_tab_1').background='/image/part2_qh1_off.gif';
  document.getElementById('right_tab_2').background='/image/part2_qh1_off.gif';
  document.getElementById('right_detail_1').style.display='none';
  document.getElementById('right_detail_2').style.display='none';
 
  eval('document.getElementById('+ "'right_tab_" + layerName + "'" +').background="image/part2_qh1_on.gif"');
  eval('document.getElementById('+ "'right_detail_" + layerName + "'" +').style.display = "block"');
 }


function doLeftTab(layerName){ 
  document.getElementById('left_tab_1').background='/image/part2_qh1_off.gif';
  document.getElementById('left_tab_2').background='/image/part2_qh1_off.gif';
  document.getElementById('left_detail_1').style.display='none';
  document.getElementById('left_detail_2').style.display='none';
 
  eval('document.getElementById('+ "'left_tab_" + layerName + "'" +').background="/image/part2_qh1_on.gif"');
  eval('document.getElementById('+ "'left_detail_" + layerName + "'" +').style.display = "block"');
 }

var tabdelaytime=5000;
var timer=setInterval('showTab(1)',tabdelaytime);