function showbg1(num)
		  {
		        if (num == 0) {
		            eval("document.getElementById('more').href='news.aspx?tid=3';");
		        }
		        else {
		            eval("document.getElementById('more').href='news.aspx?tid=4';");
		        }
		  
				var trArr=new Array('bg1','bg2');
				var divArr=new Array('con_tab_0','con_tab_1');
				for(i=0;i<2;i++)
				{
					if(i==num)
					{
						eval("document.getElementById(trArr[i]).style.backgroundImage='url(images/bg_menu01.gif)';");
						eval("document.getElementById(divArr[i]).style.display='block';");
						eval("document.getElementById(trArr[i]).className='on';");
					}
					else
					{
						eval("document.getElementById(trArr[i]).style.backgroundImage='url(images/bg_menu1.gif)';");
						eval("document.getElementById(divArr[i]).style.display='none'");
						eval("document.getElementById(trArr[i]).className='li';");
					}
				}
		  }
		  function showbg2(num)
		  {
				var trArr=new Array('ba1','ba2','ba3');
				var divArr=new Array('con_taa_0','con_taa_1','con_taa_2');
				for(i=0;i<3;i++)
				{
					if(i==num)
					{
						eval("document.getElementById(trArr[i]).style.backgroundImage='url(images/bg_menu02.gif)';");
						eval("document.getElementById(divArr[i]).style.display='block';");
						eval("document.getElementById(trArr[i]).className='on';");
					}
					else
					{
						eval("document.getElementById(trArr[i]).style.backgroundImage='url(images/bg_menu2.gif)';");
						eval("document.getElementById(divArr[i]).style.display='none'");
						eval("document.getElementById(trArr[i]).className='li';");
					}
				}
		  }