/*
 * jquery blockui plugin
 */

;(function($) {

if (/1\.(0|1|2)\.(0|1|2)/.test($.fn.jquery) || /^1.1/.test($.fn.jquery)) {
    alert('blockui requires jquery v1.2.3 or later!  you are using v' + $.fn.jquery);
    return;
}

// global $ methods for blocking/unblocking the entire page
$.blockui   = function(opts) { install(window, opts); };
$.unblockui = function(opts) { remove(window, opts); };

// plugin method for blocking element content
$.fn.block = function(opts) {
    return this.each(function() {
        if ($.css(this,'position') == 'static')
            this.style.position = 'relative';
        if ($.browser.msie) 
            this.style.zoom = 1; // force 'haslayout'
        install(this, opts);
    });
};

// plugin method for unblocking element content
$.fn.unblock = function(opts) {
    return this.each(function() {
        remove(this, opts);
    });
};

$.blockui.version = 2.09; // 2nd generation blocking at no extra cost!

// override these in your code to change the default behavior and style
$.blockui.defaults = {
    // message displayed when blocking (use null for no message)
    message:  'please wait...',
    
    // styles for the message when blocking; if you wish to disable
    // these and use an external stylesheet then do this in your code:
    // $.blockui.defaults.css = {};
    css: { 
        padding:        0,
        margin:         0,
        width:          '300px', 
        top:            '30%', 
        left:           '50%', 
		marginleft:     '-150', 
        textalign:      'center', 
        color:          '#000', 
        border:         '1px solid #3b555c',
        backgroundcolor:'#cbddef',
		padding:        '10px',
        cursor:         'wait'
    },
    
    // styles for the overlay
    overlaycss:  { 
        backgroundcolor:'#000', 
        opacity:        '0.3' 
    },
    
    // z-index for the blocking overlay
    basez: 1000,
    
    // set these to true to have the message automatically centered
    centerx: true, // <-- only effects element blocking (page block controlled via css above)
    centery: true,
    
    // allow body element to be stetched in ie6; this makes blocking look better
    // on "short" pages.  disable if you wish to prevent changes to the body height
    allowbodystretch: true,
    
    // be default blockui will supress tab navigation from leaving blocking content;
    constraintabkey: true,
    
    // fadeout time in millis; set to 0 to disable fadeout on unblock
    fadeout:  400,
    
    // if true, focus will be placed in the first available input field when
    // page blocking
    focusinput: true,
    
    // suppresses the use of overlay styles on ff/linux (due to performance issues with opacity)
    applyplatformopacityrules: true,
    
    // callback method invoked when unblocking has completed; the callback is
    // passed the element that has been unblocked (which is the window object for page
    // blocks) and the options that were passed to the unblock call:
    //     onunblock(element, options)
    onunblock: null
};

// private data and functions follow...

var ie6 = $.browser.msie && /msie 6.0/.test(navigator.useragent);
var pageblock = null;
var pageblockels = [];

function install(el, opts) {
    var full = (el == window);
    var msg = opts && opts.message !== undefined ? opts.message : undefined;
    opts = $.extend({}, $.blockui.defaults, opts || {});
    opts.overlaycss = $.extend({}, $.blockui.defaults.overlaycss, opts.overlaycss || {});
    var css = $.extend({}, $.blockui.defaults.css, opts.css || {});
    msg = msg === undefined ? opts.message : msg;

    // remove the current block (if there is one)
    if (full && pageblock) 
        remove(window, {fadeout:0}); 
    
    // if an existing element is being used as the blocking content then we capture
    // its current place in the dom (and current display style) so we can restore
    // it when we unblock
    if (msg && typeof msg != 'string' && (msg.parentnode || msg.jquery)) {
        var node = msg.jquery ? msg[0] : msg;
        var data = {};
        $(el).data('blockui.history', data);
        data.el = node;
        data.parent = node.parentnode;
        data.display = node.style.display;
        data.position = node.style.position;
        data.parent.removechild(node);
    }
    
    var z = opts.basez;
    
    // blockui uses 3 layers for blocking, for simplicity they are all used on every platform;
    // layer1 is the iframe layer which is used to supress bleed through of underlying content
    // layer2 is the overlay layer which has opacity and a wait cursor
    // layer3 is the message content that is displayed while blocking
    
    var lyr1 = ($.browser.msie) ? $('<iframe class="blockui" style="z-index:'+ z++ +';border:none;margin:0;padding:0;position:absolute;width:100%;height:100%;top:0;left:0" src="javascript:false;"></iframe>')
                                : $('<div class="blockui" style="display:none"></div>');
    var lyr2 = $('<div class="blockui blockoverlay" style="z-index:'+ z++ +';cursor:wait;border:none;margin:0;padding:0;width:100%;height:100%;top:0;left:0"></div>');
    var lyr3 = full ? $('<div class="blockui blockmsg blockpage" style="z-index:'+z+';position:fixed"></div>')
                    : $('<div class="blockui blockmsg blockelement" style="z-index:'+z+';display:none;position:absolute"></div>');

    // if we have a message, style it
    if (msg){ 
		lyr3.css(css);
		lyr3.css('left', $.browser.msie ? '50%' : (document.body.offsetwidth-parseint(css.width))/2 + "px");
		lyr3.css('marginleft', $.browser.msie ? -parseint(css.width)/2 + "px" : '');
	}

    // style the overlay
    if (!opts.applyplatformopacityrules || !($.browser.mozilla && /linux/.test(navigator.platform))) 
        lyr2.css(opts.overlaycss);
		lyr2.css('position', full ? 'fixed' : 'absolute');
    
    // make iframe layer transparent in ie
    if ($.browser.msie) 
        lyr1.css('opacity','0.0');

    $([lyr1[0],lyr2[0],lyr3[0]]).appendto(full ? 'body' : el);
    
    // ie7 must use absolute positioning in quirks mode and to account for activex issues (when scrolling)
    var expr = $.browser.msie && (!$.boxmodel || $('object,embed', full ? null : el).length > 0);
    if (ie6 || expr) {
        // give body 100% height
        if (full && opts.allowbodystretch && $.boxmodel)
            $('html,body').css('height','100%');

        // fix ie6 issue when blocked element has a border width
        if ((ie6 || !$.boxmodel) && !full) {
            var t = sz(el,'bordertopwidth'), l = sz(el,'borderleftwidth');
            var fixt = t ? '(0 - '+t+')' : 0;
            var fixl = l ? '(0 - '+l+')' : 0;
        }

        // simulate fixed position
        $.each([lyr1,lyr2,lyr3], function(i,o) {
            var s = o[0].style;
            s.position = 'absolute';
            if (i < 2) {
                full ? s.setexpression('height','document.body.scrollheight > document.body.offsetheight ? document.body.scrollheight : document.body.offsetheight + "px"')
                     : s.setexpression('height','this.parentnode.offsetheight + "px"');
                full ? s.setexpression('width','jquery.boxmodel && document.documentelement.clientwidth || document.body.clientwidth + "px"')
                     : s.setexpression('width','this.parentnode.offsetwidth + "px"');
                if (fixl) s.setexpression('left', fixl);
                if (fixt) s.setexpression('top', fixt);
            }
            else if (opts.centery) {
                if (full) s.setexpression('top','(document.documentelement.clientheight || document.body.clientheight) / 2 - (this.offsetheight / 2) + (blah = document.documentelement.scrolltop ? document.documentelement.scrolltop : document.body.scrolltop) + "px"');
                s.margintop = 0;
            }
        });
    }
    
    // show the message
    lyr3.append(msg).show();
    if (msg && (msg.jquery || msg.nodetype))
        $(msg).show();

    // bind key and mouse events
    bind(1, el, opts);
        
    if (full) {
        pageblock = lyr3[0];
        pageblockels = $(':input:enabled:visible',pageblock);
        if (opts.focusinput)
            settimeout(focus, 20);
    }
    else
        center(lyr3[0], opts.centerx, opts.centery);
};

// remove the block
function remove(el, opts) {
    var full = el == window;
    var data = $(el).data('blockui.history');
    opts = $.extend({}, $.blockui.defaults, opts || {});
    bind(0, el, opts); // unbind events
    var els = full ? $('body').children().filter('.blockui') : $('.blockui', el);
    
    if (full) 
        pageblock = pageblockels = null;

    if (opts.fadeout) {
        els.fadeout(opts.fadeout);
        settimeout(function() { reset(els,data,opts,el); }, opts.fadeout);
    }
    else
        reset(els, data, opts, el);
};

// move blocking element back into the dom where it started
function reset(els,data,opts,el) {
    els.each(function(i,o) {
        // remove via dom calls so we don't lose event handlers
        if (this.parentnode) 
            this.parentnode.removechild(this);
    });
    if (data && data.el) {
        data.el.style.display = data.display;
        data.el.style.position = data.position;
        data.parent.appendchild(data.el);
        $(data.el).removedata('blockui.history');
    }
    if (typeof opts.onunblock == 'function')
        opts.onunblock(el,opts);
};

// bind/unbind the handler
function bind(b, el, opts) {
    var full = el == window, $el = $(el);
    
    // don't bother unbinding if there is nothing to unbind
    if (!b && (full && !pageblock || !full && !$el.data('blockui.isblocked'))) 
        return;
    if (!full) 
        $el.data('blockui.isblocked', b);
        
    // bind anchors and inputs for mouse and key events
    var events = 'mousedown mouseup keydown keypress click';
    b ? $(document).bind(events, opts, handler) : $(document).unbind(events, handler);

// former impl...
//    var $e = $('a,:input');
//    b ? $e.bind(events, opts, handler) : $e.unbind(events, handler);
};

// event handler to suppress keyboard/mouse events when blocking
function handler(e) {
    // allow tab navigation (conditionally)
    if (e.keycode && e.keycode == 9) {
        if (pageblock && e.data.constraintabkey) {
            var els = pageblockels;
            var fwd = !e.shiftkey && e.target == els[els.length-1];
            var back = e.shiftkey && e.target == els[0];
            if (fwd || back) {
                settimeout(function(){focus(back)},10);
                return false;
            }
        }
    }
    // allow events within the message content
    if ($(e.target).parents('div.blockmsg').length > 0)
        return true;
        
    // allow events for content that is not being blocked
    return $(e.target).parents().children().filter('div.blockui').length == 0;
};

function focus(back) {
    if (!pageblockels) 
        return;
    var e = pageblockels[back===true ? pageblockels.length-1 : 0];
    if (e) 
        e.focus();
};

function center(el, x, y) {
    var p = el.parentnode, s = el.style;
    var l = ((p.offsetwidth - el.offsetwidth)/2) - sz(p,'borderleftwidth');
    var t = ((p.offsetheight - el.offsetheight)/2) - sz(p,'bordertopwidth');
    if (x) s.left = l > 0 ? (l+'px') : '0';
    if (y) s.top  = t > 0 ? (t+'px') : '0';
};

function sz(el, p) { 
    return parseint($.css(el,p))||0; 
};

})(jquery);


//仿alert
(function($){
	$.fn.alertwindow = function(ntc,url){
		
		$('div#alert').remove();
		$('html').append("<div  id='alert'></div>");
		$('div#alert').append("<div class='topbar'>提示信息<div class='pwclose'></div></div><div class='border'><div class='ntc'>"+ntc+"</div><div class='buttonzone'><input type='button' class='button' id='ok' value='确定' /></div></div>");
		
		$.blockui({message: $('div#alert'),css:{width:'300px'}}); 
		
		$('#ok').click(function() { 
			$.unblockui();
			$("div#alert").fadeout("slow");
			if(url!=""){
				settimeout("self.location='"+url+"'",300);
			}
			
		}); 
		$('.pwclose').click(function() { 
			$.unblockui(); 
			$("div#alert").fadeout("slow");
			if(url!=""){
				settimeout("self.location='"+url+"'",300);
			}
		}); 
		
	};
})(jquery);