请下载使用

								function submitDel()
				{
					document.form1.submit();
					
				}
				function submitsubmit()
				{
					document.form2.submit();
					
				}
				
				
					function opencat(cat,img)
					{
				 	 	if(cat.style.display=="none"){
				     	cat.style.display="";
				    	 img.src="../img/class2.gif";
				  		} else {
				     	cat.style.display="none"; 
				     	img.src="../img/class1.gif";
				  		}
					}
				
				function checkspace(checkstr) {
				  var str = '';
				  for(i = 0; i < checkstr.length; i++) {
				    str = str + ' ';
				  }
				  return (str == checkstr);
				}
				
				  function checkuu()
				{
				    if(checkspace(document.userlogin.username.value)) {
					document.userlogin.username.focus();
				    alert("用户名不能为空！");
					return false;
				  }
				    if(checkspace(document.userlogin.userpassword.value)) {
					document.userlogin.userpassword.focus();
				    alert("密码不能为空！");
					return false;
				  }
					
				  }
				var online= new Array();
				if (!document.layers)
				document.write('')
				
				// -- End of JavaScript Code -->