//选中所有
function checkall(form, prefix, checkall) {
	var checkall = checkall ? checkall : 'chkall';
	for(var i = 0; i < form.elements.length; i++) {
		var e = form.elements[i];
		if(e.name != checkall && (!prefix || (prefix && e.name.match(prefix)))) {
			e.checked = form.elements[checkall].checked;
		}
	}
}
function threads_con(v){
	if(v!=""){
		var myobj=document.formC;
		var array = document.formC.elements;
		var parements="";
		if(array.length==undefined && array.checked){
			parements=array.value;
		}else{
			for(i=0;i<array.length;i++){
				if(array[i].disabled==false && array[i].checked==true){
					parements+=array[i].value+",";
				}
			  }
		}
		if(parements!=""){
			if(confirm("确认要执行此操作吗？")){
				myobj.doaction.value=v;
				myobj.submit();
				
			}
		}else{
			alert("请选择一个操作对象");
		}
	}
}
function src_confirm(v){
	if(confirm("确认要执行此操作吗？")){
		window.location.href=v;
	}
}

function _$(v){
	return document.getElementById(v);
}

function get_mail_str(vid){
	_$("mail_str").innerHTML=_$("mail_str").innerHTML+_$("mail_"+vid).innerHTML+";";
}
function isSsnString (ssn)
{
	var re=/^[a-z][\w-.#]*[a-z]$/i;
	if(re.test(ssn))
		return true;
	else
		return false;
}

function checkEmail(email){
 var pattern=/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
 if(pattern.exec(email))
		return true;
	else
		return false;
}

function get_time(){
	return new Date().getTime();
}

var queryString;
function setQueryString(frm){
	queryString="";
	var numberElements = frm.elements.length;
	for(var i=0;i<numberElements;i++){
		if(i< numberElements-1){
			queryString += frm.elements[i].name+"="+encodeURIComponent(frm.elements[i].value)+"&";
		}else{
			queryString += frm.elements[i].name+"="+encodeURIComponent(frm.elements[i].value);
		}
	}
}

function chg_checkcode(){
	$("#yzm_s").attr("src","./captcha/visual-captcha.php?"+get_time());
}