/*
 * 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;
    }

    //$.fn._fadein = $.fn.fadein;

    //var noop = function() { };

    // this bit is to ensure we don't call setexpression when we shouldn't (with extra muscle to handle
    // retarded useragent strings on vista)
    var mode = document.documentmode || 0;
    var setexpr = $.browser.msie && (($.browser.version < 8 && !mode) || mode < 8);
    var ie6 = $.browser.msie && /msie 6.0/.test(navigator.useragent) && !mode;

    // 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 = 2.31; // 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 elementcghf 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 hascghf 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 ascghf 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 = setexpr && (!$.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);