// JavaScript Document

function unselectall()
{
    if(document.del.chkAll.checked){
	document.del.chkAll.checked = document.del.chkAll.checked&0;
    } 	
}

function CheckAll(form)
  {
  for (var i=0;i<form.elements.length;i++)
    {
    var e = form.elements[i];
    if (e.Name != "chkAll")
       e.checked = form.chkAll.checked;
    }
  }
function ConfirmDel()
{
   if(confirm("我不知道是什么"))
     return true;
   else
     return false;
	 
}


var tt='start';
var ii='start';
function turnit(ss,bb) {
    if (ss.style.display=="none") {
    if(tt!='start') tt.style.display="none";
    if(ii!='start') ii.src="";
    ss.style.display="";
    tt=ss;
    ii=bb;
  }
  else {
    ss.style.display="none"; 
  }
}

<!--
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
//-->

function OnEnter( field ) { if( field.value == field.defaultValue ) { field.value = ""; } }
function OnExit( field ) { if( field.value == "" ) { field.value = field.defaultValue; } }
function onenter() 
{ 
if(window.event.keyCode==13) 
{ 
login.submit(); 
} 
}