function qiehuan(num){
		for(var id = 0;id<=11;id++)
		{
			if(id==num)
			{
				//document.getElementById("qh_con"+id).style.display="block";
				document.getElementById("mynav"+id).className="nav_on";
			}
			else
			{
				//document.getElementById("qh_con"+id).style.display="none";
				document.getElementById("mynav"+id).className="";
			}
		}
	}
	
	function show(f){
		if(f){
			document.getElementById('returndatediv').style.display="block";
		}else{
			document.getElementById('returndatediv').style.display="none";
		}
	}
	function tab_select(idpre,showId) {
		if(showId==1){
			document.getElementById('btn_'+idpre+1).className="searchbox_flt_current";
			document.getElementById('btn_'+idpre+2).className="searchbox_htl_nocurrent";
			document.getElementById('btn_'+idpre+3).className="searchbox_pkg_nocurrent";
			document.getElementById(idpre+1).style.display="block";
			document.getElementById(idpre+2).style.display="none";
			document.getElementById(idpre+3).style.display="none";
			
		}
		if(showId==2){
			document.getElementById('btn_'+idpre+1).className="searchbox_flt_nocurrent";
			document.getElementById('btn_'+idpre+2).className="searchbox_htl_current";
			document.getElementById('btn_'+idpre+3).className="searchbox_pkg_nocurrent";
			document.getElementById(idpre+2).style.display="block";
			document.getElementById(idpre+1).style.display="none";
			document.getElementById(idpre+3).style.display="none";
			
		}
		if(showId==3){
			document.getElementById('btn_'+idpre+1).className="searchbox_flt_nocurrent";
			document.getElementById('btn_'+idpre+2).className="searchbox_htl_nocurrent";
			document.getElementById('btn_'+idpre+3).className="searchbox_pkg_current";
			document.getElementById(idpre+3).style.display="block";
			document.getElementById(idpre+2).style.display="none";
			document.getElementById(idpre+1).style.display="none";
			
		}
	}