// JavaScript Document
function isEmail(formemail) {
	var	str;
	str = formemail.value;
  if (str=="") {
    alert('请输入Email');
	formemail.focus();
    return false;
  }
  var supported = 0;
  var ValidEmail=false
  if (window.RegExp) {    
    var tempStr = "a";
    var tempReg = new RegExp(tempStr);
    if (tempReg.test(tempStr)) supported = 1;  
  }  
  if (!supported) {  ValidEmail=(str.indexOf(".") > 2) && (str.indexOf("@") > 0); }
  else {
    var r2 = new RegExp("^[a-zA-Z0-9][a-zA-Z0-9_.-]+\\@[a-zA-Z0-9\\-\\._]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
    ValidEmail=r2.test(str);
  }
  if (!ValidEmail) {
    window.alert("E-mail地址不正确，请重新填写！");
    formemail.focus();
    return false;
  }
  else {
    ValidEmail=true;
      return true;
  }
      return true;
}


function chkCheckbox(aTitle,aTextCtrl) {
	var lTemp=false;
	for (i=0; i<aTextCtrl.length; i++)
		if (aTextCtrl[i].checked)
			lTemp = true;
	if (!lTemp) {
		alert('请选择 ['+aTitle+'] ！');
		aTextCtrl[0].focus();
		return false;
	} else
		return true;
}


function isNum(formidcode){
	var pattern = /^\d{15}$/;
	var pattern2 = /^\d{17}.$/;	if(formidcode.value.match(pattern)||formidcode.value.match(pattern2)){
		return true;
	}
	else{
		alert("身份证必须为15位或18位数字！");	
		return false;
	}
}