function showtr(whichtr){

    var tabb1=document.all['tab1'];
	var tabb2=document.all['tab2'];
	var tabb3=document.all['tab3'];
	var tabb4=document.all['tab4'];
	var tabb11=document.all['zcfgtab'];
	var tabb22=document.all['zcjdtab'];
	var tabb33=document.all['zyxz0tab'];
	var tabb44=document.all['zyxz1tab'];
	
if (whichtr=='1')
	{
	if(tabb1 != null)tabb1.style.display="block";
	if(tabb2 != null)tabb2.style.display="none";
	if(tabb3 != null)tabb3.style.display="block";
	if(tabb4 != null)tabb4.style.display="none";
	if(tabb11 != null)tabb11.style.display="block";
	if(tabb22 != null)tabb22.style.display="none";
	if(tabb33 != null)tabb33.style.display="block";
	if(tabb44 != null)tabb44.style.display="none";
	
		}
		
	else if(whichtr=='2')
	{
	if(tabb1 != null)tabb1.style.display="none";
	if(tabb2 != null)tabb2.style.display="block";
	if(tabb3 != null)tabb3.style.display="block";
	if(tabb4 != null)tabb4.style.display="none";
	if(tabb11 != null)tabb11.style.display="none";
	if(tabb22 != null)tabb22.style.display="block";
	if(tabb33 != null)tabb33.style.display="block";
	if(tabb44 != null)tabb44.style.display="none";
	
	}
	else if(whichtr=='3')
	{
	if(tabb1 != null)tabb1.style.display="block";
	if(tabb2 != null)tabb2.style.display="none";
	if(tabb3 != null)tabb3.style.display="block";
	if(tabb4 != null)tabb4.style.display="none";
	if(tabb11 != null)tabb11.style.display="block";
	if(tabb22 != null)tabb22.style.display="none";
    if(tabb33 != null)tabb33.style.display="block";
	if(tabb44 != null)tabb44.style.display="none";
	
	}
	else if(whichtr=='4')
	{
	if(tabb1 != null)tabb1.style.display="block";
	if(tabb2 != null)tabb2.style.display="none";
	if(tabb3 != null)tabb3.style.display="none";
	if(tabb4 != null)tabb4.style.display="block";
	if(tabb11 != null)tabb11.style.display="block";
	if(tabb22 != null)tabb22.style.display="none";
    if(tabb33 != null)tabb33.style.display="none";
	if(tabb44 != null)tabb44.style.display="block";
	
	}	



}