function showhide_tie(tieid,sieid){
	for(var i=1;i<5;i++){
		var x = document.getElementById('tie' + i);	
		x.className = "";
		var y = document.getElementById('sie' + i);	
		y.style.display = "none";
	                    }	
	        document.getElementById(tieid).className = "in_chexing_stitin";
	        document.getElementById(sieid).style.display = "";
         }