function AlertInfo(type)
{
	var r_text = "";
	switch (type)
	{
		case "U0001":
			r_text = "用户帐号不存在";
			break;
		case "U0002":
			r_text = "用户密码错误";
			break;
		case "U0003":
			r_text = "用户帐号未审核";
			break;
		case "U0004":
			r_text = "用户帐号未审核通过";
			break;
		case "U0005":
			r_text = "单元帐号不存在";
			break;
		case "U0006":
			r_text = "单元帐号未审核";
			break;
		case "U0007":
			r_text = "单元帐号审核未通过";
			break;
	}
	alert(r_text);
}
$(function(){
	if($.cookie('jsUserName'))
	{
		$('#user_name').val($.cookie('jsUserName'));
		$('#user_pass').val($.cookie('jsUserPass'));
		$('#rename').attr('checked','checked');
	}
	$('#frmLogin').submit(function(){
		var username = $('#user_name');
		var userpass = $('#user_pass');
		if(username.val() == '' || username.val() == null)
		{
			alert('用户名不能为空');
			username.focus();
			return false;
		}
		if(userpass.val() == '' || userpass.val() == null)
		{
			alert('密码不能为空');
			userpass.focus();
			return false;
		}
		if($('#rename').is(':checked')){
			$.cookie('jsUserName',username.val(),{expires:365,path: '/'});
			$.cookie('jsUserPass',userpass.val(),{expires:365,path: '/'});
		}
		else
		{
			$.cookie('jsUserName',null,{expires: -1});
			$.cookie('jsUserPass',null,{expires: -1});
		}
	});
})

function enableAlphaImages(){
var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
var itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5);
if (itsAllGood) {
for (var i=0; i<document.all.length; i++){
var obj = document.all[i];
var bg = obj.currentStyle.backgroundImage;
var img = document.images[i];
if (bg && bg.match(/\.png/i) != null) {
var img = bg.substring(5,bg.length-2);
var offset = obj.style["background-position"];
obj.style.filter =
"progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+img+"', sizingMethod='crop')";
obj.style.backgroundImage = "url(global_var.spacerpng)";//替换透明PNG的图片
obj.style["background-position"] = offset; // reapply
} else if (img && img.src.match(/\.png$/i) != null) {
var src = img.src;
img.style.width = img.width + "px";
img.style.height = img.height + "px";
img.style.filter =
"progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+src+"', sizingMethod='crop')"
img.src = global_var.spacerpng;//替换透明PNG的图片
}}}}