//Ë«»÷¹öÆÁ£¬<body onDblClick="ttt=0">
var currentpos,timer; 
function initialize() 
{ 
	timer=setInterval("scrollwindow()",10);
} 

function sc()
{
	clearInterval(timer);	
}

function scrollwindow() 
{ 
	currentpos=document.body.scrollTop; 
	window.scroll(0,++currentpos); 
	if (currentpos != document.body.scrollTop) 
		sc();
} 
document.onmousedown=sc
document.ondblclick=initialize

function CheckAll(form)
  {
  for (var i=0;i<form.elements.length;i++)
    {
    var e = form.elements[i];
          e.checked = true;
    }
  }

  
function FanAll(form)
 {
  for (var i=0;i<form.elements.length;i++)
    {
    var e = form.elements[i];
      if (e.checked == true){
          e.checked = false;
          }
       else {
          e.checked = true;
          }         
    }
}

function enable(btn)
{
	btn.filters.gray.enabled=0;
}

function disable(btn)
{
	btn.filters.gray.enabled=1;
}

function friendls()
{
	var myfriend = document.form1.GetStudentName.options[document.form1.GetStudentName.selectedIndex].value;
	document.form1.GetStudentId.value = myfriend;
}

