dom change event

domChangeEvent.js

//http://stackoverflow.com/questions/1449666/create-a-jquery-special-event-for-content-changed
(function(){

    var interval;

	jQuery.event.special.contentchange = {
        setup: function(){
            var self = this,
            $this = $(this),
            $originalContent = $this.text();
            interval = setInterval(function(){
            	if($originalContent != $this.text()) {
                	$originalContent = $this.text();
                    jQuery.event.handle.call(self, {type:'contentchange'});
            	}
            },100);
        },
        teardown: function(){
            clearInterval(interval);
        }
    };

})();



jQuery.fn.watch = function( id, fn ) { 
    return this.each(function(){ 
 
        var self = this; 
 
        var oldVal = self[id]; 
        $(self).data( 
            'watch_timer', 
            setInterval(function(){ 
                if (self[id] !== oldVal) { 
                    fn.call(self, id, oldVal, self[id]); 
                    oldVal = self[id]; 
                } 
            }, 100) 
        ); 
 
    }); 
 
    return self; 
}; 



jQuery.fn.unwatch = function( id ) { 
 
    return this.each(function(){ 
        clearInterval( $(this).data('watch_timer') ); 
    }); 
 
};
 

jQuery.fn.valuechange = function(fn) {     
    return this.bind('valuechange', fn);  
};
jQuery.event.special.valuechange = {        
    setup: function() {         
       jQuery(this).watch('value', function(){  
            jQuery.event.handle.call(this, {type:'valuechange'});  
        });        
     },
     teardown: function() {   
       jQuery(this).unwatch('value'); 
     } 
};

var title = $("b.facility");
var title = $('#title');


//method two
//the element I want to monitor
title.bind('DOMNodeInserted', function(e) {
    alert('element now contains: ' + $(e.target).html());
});

//method three
//https://developer.mozilla.org/zh-CN/docs/DOM/MutationObserver  
var BrowserMutationObserver = window.MutationObserver || window.WebKitMutationObserver;

为了兼容ie6， 看来只能setInterval了！