//判断用户的输入是否合法
function check(){
	if (myform.username.value==""){
		alert("请输入用户名！");myform.username.focus();return;
	}
	if (myform.truename.value==""){
		alert("请输入真实姓名！");myform.truename.focus();return;
	}
	if (myform.pwd.value==""){
		alert("请输入密码！");myform.pwd.focus();return;
	}
	if (myform.pwd.value.length<1){
		alert("密码至少为6位，请重新输入！");myform.pwd.focus();return;
	}		
	if (myform.pwd1.value==""){
		alert("请确认密码！");myform.pwd1.focus();return;
	}
	if (myform.pwd.value!=myform.pwd1.value){
		alert("您两次输入的密码不一致，请重新输入！");myform.pwd.focus();return;
	}
	if(myform.cardno.value==""){
		alert("请证件号码！");myform.cardno.focus();return;
	}		
	if (myform.email.value==""){
		alert("请输入Email地址！");myform.email.focus();return;
	}
	var i=myform.email.value.indexOf("@");
	var j=myform.email.value.indexOf(".");
	if((i<0)||(i-j>0)||(j<0)){
		alert("您输入的Email地址不正确，请重新输入！");myform.email.value="";myform.email.focus();return;
	}
	myform.submit();		
}
function check_modi(){
	if (myform.truename.value==""){
		alert("请输入真实姓名！");myform.truename.focus();return;
	}
	if (myform.oldpwd.value==""){
		alert("请输入原密码！");myform.oldpwd.focus();return;
	}
	if(myform.holdpwd.value!=myform.oldpwd.value){
		alert("您输入的原密码不正确，请重新输入！");myform.oldpwd.value="";myform.oldpwd.focus();return;
	}
	if (myform.pwd.value==""){
		alert("请输入新密码！");myform.pwd.focus();return;
	}
	if (myform.pwd.value.length<1){
		alert("新密码至少为6位，请重新输入！");myform.pwd.focus();return;
	}		
	if (myform.pwd1.value==""){
		alert("请确认新密码！");myform.pwd1.focus();return;
	}
	if (myform.pwd.value!=myform.pwd1.value){
		alert("您两次输入的密码不一致，请重新输入！");myform.pwd.focus();return;
	}
	if(myform.cardno.value==""){
		alert("请证件号码！");myform.cardno.focus();return;
	}		
	if (myform.email.value==""){
		alert("请输入Email地址！");myform.email.focus();return;
	}
	var i=myform.email.value.indexOf("@");
	var j=myform.email.value.indexOf(".");
	if((i<0)||(i-j>0)||(j<0)){
		alert("您输入的Email地址不正确，请重新输入！");myform.email.value="";myform.email.focus();return;
	}
	myform.submit();		
}
function checkU(myform){
	if(myform.username.value==""){
		alert("请输入用户名!");myform.username.focus();return;
	}
	if(myform.PWD.value==""){
		alert("请输入密码!");myform.PWD.focus();return;
	}
	myform.submit();
}

function checkM(myform){
	if(myform.manager.value==""){
		alert("请输入管理员名!");myform.manager.focus();return;
	}
	if(myform.PWD.value==""){
		alert("请输入密码!");myform.PWD.focus();return;
	}
	myform.submit();
}
function CheckAll(elementsA,elementsB){
	for(i=0;i<elementsA.length;i++){
		elementsA[i].checked = true;
	}
	if(elementsB.checked ==false){
		for(j=0;j<elementsA.length;j++){
			elementsA[j].checked = false;
			}
	}
}
//判断用户是否选择了要删除的记录，如果是，则提示“是否删除”；否则提示“请选择要删除的记录”
function checkdel(delid,formname){
	var flag = false;
	for(i=0;i<delid.length;i++){
		if(delid[i].checked){
			flag = true;
			break;
		}
	}
	if(!flag){
		alert("请选择要删除的记录！");
		return false;
	}else{
			if(confirm("确定要删除吗？")){
				formname.submit();
		}
	}
}