//显示子菜单的控制函数
function subMenuShow(subMenuId){
var subMenuName="subMenu"+subMenuId;
var mainMenu="main"+subMenuId;


//根据传递的参数获取对象


if(document.getElementById(subMenuName)){
document.getElementById(subMenuName).style.left=document.getElementById(mainMenu).offsetLeft;
document.getElementById(subMenuName).style.visibility="visible";
}


//设置对象为可见状态
}
//隐藏子菜单的控制函数
function subMenuHide(subMenuId){
var subMenuName="subMenu"+subMenuId;

//根据传递的参数获取对象

if(document.getElementById(subMenuName))
document.getElementById(subMenuName).style.visibility="hidden";
//设置对象为隐藏状态
}


			  function checkSearch()
			  {
        if (document.form1.keyword.value=="")
		{
      alert("请输入搜索关键字!");
	    document.form1.keyword.focus();
	    return false;
        } 
		
   }