orderobj = document.getElementById("order");
if (orderobj.addEventListener){
	orderobj.addEventListener('DOMMouseScroll', orderWheel, false);
}

orderobj.onmousewheel = orderWheel;

positionobj = document.getElementById("position");
if (positionobj.addEventListener){
	positionobj.addEventListener('DOMMouseScroll', positionWheel, false);
}

positionobj.onmousewheel = positionWheel;


function orderWheel(event){
        var delta = 0;
        if (!event) /* For IE. */
                event = window.event;
        if (event.wheelDelta) { /* IE/Opera. */
                delta = event.wheelDelta/120;
                /** In Opera 9, delta differs in sign as compared to IE.
                 */
                if (window.opera)
                        delta = -delta;
        } else if (event.detail) { /** Mozilla case. */
                /** In Mozilla, sign of delta is different than in IE.
                 * Also, delta is multiple of 3.
                 */
                delta = -event.detail/3;
        }
        /** If delta is nonzero, handle it.
         * Basically, delta is now positive if wheel was scrolled up,
         * and negative, if wheel was scrolled down.
         */
        if (delta)
                orderHandle(delta);
        /** Prevent default actions caused by mouse wheel.
         * That might be ugly, but we handle scrolls somehow
         * anyway, so don't bother here..
         */
        if (event.preventDefault)
                event.preventDefault();
	event.returnValue = false;
}

function orderHandle(delta) {
	var min = 1;
	var max = 24;
	var obj = document.getElementById("order");
	var path = obj.src.split("/");
	var filename = path[path.length-1];
	var re = new RegExp(/orders_noncumulative_0*([1-9]\d*)\.png/);
	if(filename.match(re)){
		var num = RegExp.$1;
		num = num-0;
		if (delta < 0){
			// ŽŸ
			
			if(num<max){
				
				obj.src = "orders_noncumulative_"+zero(num+1)+".png"+unique;
			}
		}
		else{
			// ‘O
			if(num>min){
				obj.src = "orders_noncumulative_"+zero(num-1)+".png"+unique;
			}
		}
	}
}

function positionWheel(event){
        var delta = 0;
        if (!event) /* For IE. */
                event = window.event;
        if (event.wheelDelta) { /* IE/Opera. */
                delta = event.wheelDelta/120;
                /** In Opera 9, delta differs in sign as compared to IE.
                 */
                if (window.opera)
                        delta = -delta;
        } else if (event.detail) { /** Mozilla case. */
                /** In Mozilla, sign of delta is different than in IE.
                 * Also, delta is multiple of 3.
                 */
                delta = -event.detail/3;
        }
        /** If delta is nonzero, handle it.
         * Basically, delta is now positive if wheel was scrolled up,
         * and negative, if wheel was scrolled down.
         */
        if (delta)
                positionHandle(delta);
        /** Prevent default actions caused by mouse wheel.
         * That might be ugly, but we handle scrolls somehow
         * anyway, so don't bother here..
         */
        if (event.preventDefault)
                event.preventDefault();
	event.returnValue = false;
}

function positionHandle(delta) {
	var min = 1;
	var max = 24;
	var obj = document.getElementById("position");
	var path = obj.src.split("/");
	var filename = path[path.length-1];
	var re = new RegExp(/posentryprice_noncumulative_0*([1-9]\d*)\.png/);
	if(filename.match(re)){
		var num = RegExp.$1;
		num = num-0;
		if (delta < 0){
			// ŽŸ
			
			if(num<max){
				
				obj.src = "posentryprice_noncumulative_"+zero(num+1)+".png"+unique;
			}
		}
		else{
			// ‘O
			if(num>min){
				obj.src = "posentryprice_noncumulative_"+zero(num-1)+".png"+unique;
			}
		}
	}
}

function imageShift(id,url){
	var obj = document.getElementById(id);
	obj.src = url;
}

function zero(str){
	str= str+"";
	
	if(str.length<3){
		var max = 3-str.length;
		for(var i=0;i<max;i++){
			str = "0"+str;
		}
	}
	return str;
}