// JavaScript Document
function provincechange(vv){
ajax("area.php","province="+vv,citylist)
}
function provincechange1(vv){
ajax("area.php","province="+vv,citylist1)
}
function provincechangeonload(vv){//页面加载的时候用
ajax("area.php","province="+vv,citylistonload)
}
function provincechangeonload1(vv){//页面加载的时候用
ajax("area.php","province="+vv,citylistonload1)
}
function citylist(xml){
document.form1.city.innerHTML="";
var opt=document.createElement("OPTION");
opt.innerText="－城市－";
opt.value="";
document.form1.city.appendChild(opt);
for(var i=0;i<xml.responseXML.getElementsByTagName("city").length;i++){
	var opt=document.createElement("OPTION");
	opt.value=xml.responseXML.getElementsByTagName("city")[i].getAttribute("id");
	opt.innerText=xml.responseXML.getElementsByTagName("city")[i].text;
	if (i==0)
	{
		opt.selected=true;
	}
	document.form1.city.appendChild(opt);
}
}
function citylist1(xml){
document.form1.now_city.innerHTML="";
var opt=document.createElement("OPTION");
opt.innerText="－城市－";
opt.value="";
document.form1.city.appendChild(opt);
for(var i=0;i<xml.responseXML.getElementsByTagName("city").length;i++){
	var opt=document.createElement("OPTION");
	opt.value=xml.responseXML.getElementsByTagName("city")[i].getAttribute("id");
	opt.innerText=xml.responseXML.getElementsByTagName("city")[i].text;
	if (i==0)
	{
		opt.selected=true;
	}
	document.form1.now_city.appendChild(opt);
}
}
function linksdo()
{
	if (!emailreg(document.form1.email.value))
	{
		alert("电子邮件不符合格式要求");
		document.form1.email.focus();
		return false;
	}
}
function emailreg(email){
	var rgpre=/^[_a-z0-9]+@([_a-z0-9]+\.)[_a-z0-9]{2,3}$/g;
	if (rgpre.test(email))
	{
		return true;
	}else{
		return false;
	}
}