$(document).ready(function(){


	window.onload = function() {
	scrollTips.init();
	}



/* the mouse scrolling doesn't work with Opera, that hasn't a event associated to the mouse wheel */
 
var scrollTips = {
	dx : null,
	init : function() {	
		if (window.addEventListener) {
		window.addEventListener("DOMMouseScroll", this.mouseScroll, false);
		} else document.attachEvent("onmousewheel", this.mouseScroll); 
		var left = document.getElementById('left');
		addEvent(left,'mouseover', function() {this.dx=setInterval('scrollTips.arrowScroll(0)',100);return false;});
		addEvent(left,'mouseout', function() { clearInterval(this.dx); return false;});
		var right = document.getElementById('right');
		addEvent(right,'mouseover', function() {this.dx=setInterval('scrollTips.arrowScroll(1)',100);return false;});
		addEvent(right,'mouseout', function() { clearInterval(this.dx); return false;});
	},
	mouseScroll : function(e) {
		if (!e) var e = window.event;
		if (e.wheelDelta <= 0 || e.detail>=0){  
		window.scrollBy(80,0);
		} else  window.scrollBy(-80,0) ; 
	},	
	arrowScroll: function(val) {
		if(val==1) {
			window.scrollBy(70,0);
		} else {
			window.scrollBy(-70,0)
		}
	}
}

function addEvent( obj, type, fn ) {
	if (obj.addEventListener)
		obj.addEventListener( type, fn, false );
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
	}
}

function removeEvent( obj, type, fn ) {
	if (obj.removeEventListener)
		obj.removeEventListener( type, fn, false );
	else if (obj.detachEvent) {
		obj.detachEvent( "on"+type, obj[type+fn] );
		obj[type+fn] = null;
		obj["e"+type+fn] = null;
	}
}

	// CUSTOM DRAG SCROLLER

	var padding = 110;
	var intX = null;
	var once = 0;
	
	$('#content').mousedown( function( event ) {
		$('html,body').stop(); // for stopping browse animation
		intX = event.pageX;
		return false; // disabled selection
	});

	$(document).mousemove( function( event ) {
		if( intX !== null ) {
			var moveX = $(window).scrollLeft() + -(event.pageX - intX); // scrolling mathematics
			$(window).scrollLeft(moveX); // scroll the site

			// scroll past left edge by moving content
			if($(window).scrollLeft() == 0 ){
				if(!once){
					intX = event.pageX;
					once = 1;
				}
				$('#content').css({ left: padding+-moveX });
			}

			$(this).css({ 'MozUserSelect' : 'none' }); // should disable selection in Firefox Win
			return false; // disables selection in Safari Mac, Firefox Mac, IE7
		}
	});

	$(document).mouseup( function( event ) {
		if( intX !== null ) {
			once = 0;
			intX = null;
			
			// reset content position is it was moved
			if( parseFloat($('#content').css('left')) !== padding ){
				$('#content').animate({ left: padding },500);
			}
			
		}
	});



	// Enable selection of important elements
	// select, option, and button have not been tested
	$('input, select, option, label, textarea, button').mousedown( function(){
		$( this ).focus();
	});


});