_g = function(id) {return document.getElementById(id);}

//产生年份 #select option
function selectYear(y)
{
	var time = new Date();
	var year = time.getYear();
	if (year < 1900){
		year = year + 1900;
	}
	var date = year - 103;
        document.write ("<option value=\"0\">保密</option>");
	for(i=date;i<=year;i++){
             if(i==y)
             {
		document.write ("<option value=\"" +i+"\" selected=\"selected\">" +i+ "</option>");
             }else{
		document.write ("<option value=\"" +i+"\">" +i+ "</option>");
             }
	}
}

//产生月份 #select option
function selectMonth(month)
{
        document.write ("<option value=\"0\">保密</option>");
        for(i = 1;i <= 12;i++){
           if (i==month)
           {
		if(i <= 9){
			document.write ("<option value=\"" +i+"\" selected=\"selected\">0" +i+ "</option>");
		} else {
			document.write ("<option value=\"" +i+"\" selected=\"selected\">" +i+ "</option>");
		}
           }else{
		if(i <= 9){
			document.write ("<option value=\"" +i+"\">0" +i+ "</option>");
		} else {
			document.write ("<option value=\"" +i+"\">" +i+ "</option>");
		}
           }
	}
}

//产生日期 #select option
function selectDate(day)
{
        document.write ("<option value=\"0\">保密</option>");
	for(i = 1;i <= 31;i++){
            if (i==day)
            {
		if(i <= 9){
			document.write ("<option value=\"" +i+"\" selected=\"selected\">0" +i+ "</option>");
		} else {
			document.write ("<option value=\"" +i+"\" selected=\"selected\">" +i+ "</option>");
		}
            }else{
		if(i <= 9){
			document.write ("<option value=\"" +i+"\">0" +i+ "</option>");
		} else {
			document.write ("<option value=\"" +i+"\">" +i+ "</option>");
		}
            }
	}
}

//产生地区列表
function selectAddrs()
{
	var Addrs_data = {};
	Addrs_data["chinaAddrs"] = "北京,天津,上海,重庆,河北,河南,黑龙江,吉林,辽宁,山东,内蒙古,江苏,安徽,山西,陕西,浙江,江西,湖北,湖南,贵州,四川,云南,新疆,宁夏,青海,西藏,广西,广东,福建,海南,台湾,香港,澳门,其它";

	var s_html = "";
	if (typeof(Addrs_data["chinaAddrs"]) != "undefined")
	{
		var allAddrs = Addrs_data["chinaAddrs"].split(",");
		for(i = 0;i < allAddrs.length;i++)
		{
			s_html += "<option value=\"" + allAddrs[i] + "\">" + allAddrs[i] + "</option>　";
		}
	}
	else
	{
		s_html = "";
	}
	document.write (s_html);
}

function get_extname(s)
{
	var s = new String(s)
	s = s.toLowerCase();
	if ((s.lastIndexOf(".")>-1) &&((s.length-1)>s.lastIndexOf(".")))
	{
		return s.substring(s.lastIndexOf(".")+1);
	}
	else
	{
		return false;
	}
}

function in_array(a, s)
{
	var s = new String(s);
	s = s.toLowerCase();
	var a = new String(a);
	a = a.toLowerCase();
	return (","+a+",").indexOf(","+s+",");
}

function show_sel_photo(input, show)
{
  var s = _g(input).value;
  var allow_ext = new Array("jpg","png","gif","jpeg");
  if ((in_array(allow_ext, get_extname(s)))>-1)
  {
    _g(show).src = s;
  return true;
  }
  else
  {
    alert("你的图片格式不正确，请用jpg, gif, png 格式中的一种吧！ :)")
    _g(input).focus();
    _g(input).value = "";
    return false;
  }
}