// JScript 文件

 function showtable(num)
{
		var f = document.all;
		if (num==1){
			f.tb1.style.display = "block" ;
			f.tb2.style.display = "none" ;
		}
		else if (num==2){
			f.tb1.style.display = "none";
			f.tb2.style.display = "block";
		}
}


 function showtable2(num)
{
		var f = document.all;
		if (num==1){
			f.tc1.style.display = "block" ;
			f.tc2.style.display = "none" ;
			f.tc3.style.display = "none" ;
			f.tc4.style.display = "none" ;
		}
		else if (num==2){
			f.tc1.style.display = "none" ;
			f.tc2.style.display = "block"  ;
			f.tc3.style.display = "none" ;
			f.tc4.style.display = "none" ;
		}
		else if (num==3){
			f.tc1.style.display = "none" ;
			f.tc2.style.display = "none" ;
			f.tc3.style.display = "block" ;
			f.tc4.style.display = "none" ;
		}
		else if (num==4){
			f.tc1.style.display = "none" ;
			f.tc2.style.display = "none" ;
			f.tc3.style.display = "none" ;
			f.tc4.style.display = "block" ;
		}
}