function fttab(id1,id2,id3,id4,id5,id6){
	document.getElementById(id1).style.display = "block";	
	document.getElementById(id2).style.display = "none";	
	document.getElementById(id3).style.display = "none";	
	document.getElementById(id4).className = "ft_tabact";	
	document.getElementById(id5).className = "st_tab";	
	document.getElementById(id6).className = "tt_tab";	
}
function sttab(id1,id2,id3,id4,id5,id6){
	document.getElementById(id1).style.display = "block";	
	document.getElementById(id2).style.display = "none";	
	document.getElementById(id3).style.display = "none";	
	document.getElementById(id4).className = "st_tabact";	
	document.getElementById(id5).className = "ft_tab";	
	document.getElementById(id6).className = "tt_tab";	
}
function tttab(id1,id2,id3,id4,id5,id6){
	document.getElementById(id1).style.display = "block";	
	document.getElementById(id2).style.display = "none";	
	document.getElementById(id3).style.display = "none";	
	document.getElementById(id4).className = "tt_tabact";	
	document.getElementById(id5).className = "st_tab";	
	document.getElementById(id6).className = "ft_tab";	
}