一个关于function的有关问题

一个关于function的问题，在线等

C# code

<input id="Button3" type="button" onclick="shows()" style="width: 80px;" value=" 高级条件 " />         <input id="btns" type="button" onclick="close()" style="width: 80px;" value=" 收起条件 " /><script language="javascript" type="text/javascript">                function shows() {                    document.getElementById("tr1").style.display = "";                    document.getElementById("tr2").style.display = "";                    document.getElementById("tr3").style.display = "";                    document.getElementById("tr4").style.display = "";                    document.getElementById("tr5").style.display = "";                    document.getElementById("btns").style.display = "";                    document.getElementById("Button3").style.display = "none";                }                function close() {                    alert("ddd");                    document.getElementById("tr1").style.display = "none";                    document.getElementById("tr2").style.display = "none";                    document.getElementById("tr3").style.display = "none";                    document.getElementById("tr4").style.display = "none";                    document.getElementById("tr5").style.display = "none";                    document.getElementById("btns").style.display = "none";                    document.getElementById("Button3").style.display = "";                }            </script>