var xh_ary = new Array();
var phone_option = new Array();
function change_xh(id){
	var pp=document.getElementById('pp');
	var xh=document.getElementById('xh');
	var change_xh = document.getElementById('change_xh');
	var goto_btn=document.getElementById('goto_btn');
	xh.length=1;
	if (id!='') {
		pp.disabled = true;
		xh.disabled = true;
		goto_btn.disabled = true;
		
		xh.options[0].text='载入中请稍候';
		change_xh.src="/js/machine/machine_xh_"+id+".js";

		xh.options[0].text='手机型号';
		pp.disabled = false;
		xh.disabled = false;
		goto_btn.disabled = false;
		return true;
	}
}
function goto_xh() {
	var pp=document.getElementById('pp');
	var xh=document.getElementById('xh');
	if(pp.value==''){
		alert('请选择手机品牌！')
		pp.focus();
	}else if (xh.value==''){
		alert('请选择手机型号！')
		xh.focus();
	}else{
		window.location.href=xh.value;
	}
}