var prev_value='';
function show(value)
{
if(prev_value!='')
{document.all[prev_value].style.display='none';}
if(prev_value==value)
{document.all[value].style.display='none';value='';}
else 
{document.all[value].style.display='block';}
prev_value=value;
}


function CMOver(e,k)
{
		e.style.backgroundColor='#999999';
}
function CMOut(e,k)
{
	e.style.backgroundColor='#FEFEFE';
}
function unselectall()
{    if(document.myform.chkAll.checked){
	document.myform.chkAll.checked = document.myform.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("确认删除？并且不能恢复！确定要删除此信息吗？"))
     return true;
   else
     return false;
	 
}