function checkform(sform){  
for(i=0;i<sform.length;i++){ 
if (sform[i].bixu=="1" & sform[i].value==""){
	alert(sform[i].namestr+"²»ÄÜΪ¿Õ!");
	sform[i].focus()
	return false;	
	} 
} 
fsubmit(sform);  
}   


function fsubmit(sform){ 
stre=''; 
for(i=0;i<sform.length;i++){ 
if (sform[i].send=="1"){
stre +=sform[i].namestr+":"+sform[i].value+"\n"; 
} }
sform.text.value=stre;
sform.submit();
}

function showclass(){  
  document.getElementById("Layer2").style.display='block'; 
  startRequest();
  }   
  function   unshowclass(){   
  document.getElementById("Layer2").style.display='none';  
  return   false;   
	}
function Showstr(nam){
alt_show.innerHTML="<b>"+document.getElementById(nam).value+"</b><br />"+document.getElementById(nam).str
	}
	
var xmlHttp; 

function createXMLHttpRequest() { 
if (window.ActiveXObject) { 
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); 
} /*Start hiding from IE Mac \*/
/*Stop hiding from IE Mac */

else if (window.XMLHttpRequest) { 
xmlHttp = new XMLHttpRequest(); 
} 
} 

function startRequest() { 
Layer2.innerHTML="<img src=/iamges/loading.gif />"; 
createXMLHttpRequest(); 
xmlHttp.onreadystatechange = handleStateChange; 
xmlHttp.open("post", "/entrust/class.asp", true); 
xmlHttp.send(null); 
} 

function handleStateChange() { 
if(xmlHttp.readyState == 4) { 
if(xmlHttp.status == 200) { 
Layer2.innerHTML=xmlHttp.responseText; 
} 
} 
} 
function SelectClass(box_no){
	if(box_no.checked){
		document.form_wt.class_wt.value+=box_no.value+";";}
	else{
		document.form_wt.class_wt.value=document.form_wt.class_wt.value.replace(box_no.value+";","");}
}