function check(){
    if(form1.username.value==""){
     alert("请输入用户名!");
     form1.username.focus;
     return false; 
    }
 if(form1.password.value==""){
     alert("请输入密码！");
     form1.password.focus;
     return false; 
    }
    return true;
   } 

function turnit(ss)   //紧缩表格
{ss.style.display="none"}
function gogo(xx){
gs1.style.display='none';
gs2.style.display='none';
gs3.style.display='none';
xx.style.display='';
}

function checker()
{
if (form22.xx1.value=="")
{
alert("请输入查询条件！");
form22.xx1.focus();
return false;
}
return true;
}

function check(){
    if(form1.username.value==""){
     alert("请输入用户名!");
     form1.username.focus;
     return false; 
    }
 if(form1.password.value==""){
     alert("请输入密码！");
     form1.password.focus;
     return false; 
    }
    return true;
   } 

function switchTag(tag,content)
{
//        alert(tag);
//        alert(content);
        for(i=1; i <6; i++)
        {
                if ("tag"+i==tag)
                {
                        document.getElementById(tag).getElementsByTagName("a")[0].className="selectli"+i;
                        document.getElementById(tag).getElementsByTagName("a")[0].getElementsByTagName("span")[0].className="selectspan"+i;
                }else{
                        document.getElementById("tag"+i).getElementsByTagName("a")[0].className="";
                        document.getElementById("tag"+i).getElementsByTagName("a")[0].getElementsByTagName("span")[0].className="";
                }
                if ("content"+i==content)
                {
                        document.getElementById(content).className="";
                }else{
                        document.getElementById("content"+i).className="hidecontent";
                }
                document.getElementById("content").className=content;
        }
}

function checkTag(tag,content)
{
    if(tag.checked){
        for(var i=1;i<3;i++){
            if ("content"+i==content)
                {
                        document.getElementById(content).className="";
                }else{
                        document.getElementById("content"+i).className="hidecontent";
                }
                document.getElementById("content").className=content;
        }
    }

}