/*
   EventUtil is cross browser event handling object
   source is taken from book "Pro Javascript for Web Developers, 2nd Edition"
*/
var EventUtil = {
	//DOMReady is not taken from the book
	//it's written by iFadey.com
	DOMReady: function( f ) {
		if( document.addEventListener ) {
			document.addEventListener( "DOMContentLoaded", f, false );
		} else {
			window.setTimeout( f, 0 );
		}
	},
	
	addHandler: function( element, type, handler ) {
		if( element.addEventListener ) {
			element.addEventListener( type, handler, false );
		} else if( element.addEvent ) {
			element.addEvent( 'on' + type, handler );
		} else {
			element[ 'on' + type ] = handler;
		}
	},
	
	removeHandler: function( element, type, handler ) {
		if( element.removeEventListener ) {
			element.removeEventListener( type, handler );
		} else if( element.detachEvent ) {
			element.detachEvent( 'on' + type, handler );
		} else {
			element[ 'on' + type ] = null;
		}
	},
	
	getEventObj: function( e ) {
		return e ? e : window.event;
	},
	
	getEventTarget : function( e ) {
		return e.target ? e.target : e.srcElement;
	},
	
	preventDefault: function( e ) {
		e.preventDefault ? e.preventDefault() : e.returnValue = false;
	}
};