// JavaScript Document

//内容无缝滚动
function Marquee(marqueeBox, delaytime, direction, itemCell){
	if(delaytime == undefined)delaytime = 50;
	if(direction == undefined)direction = "up";
	if(itemCell == undefined)itemCell = "ul";
	var oMarquee = jQuery(marqueeBox);
	var oMarqueeCon = oMarquee.find(itemCell);
	var oMarqueeCopy = oMarqueeCon.clone(true).insertAfter(oMarqueeCon);

	var ScrollUp = function(){
		if(oMarqueeCopy[0].offsetHeight-oMarquee[0].scrollTop<=0){
			oMarquee[0].scrollTop = 0;
		}else{
			oMarquee[0].scrollTop++;
		}
	}
	
	var ScrollLeft = function(){
		if(oMarqueeCopy[0].offsetWidth-oMarquee[0].scrollLeft<=0){
			oMarquee[0].scrollLeft = 0;
		}else{
			oMarquee[0].scrollLeft++;
		}
	}
	
	switch(direction){
		case "left":
			var oScroll=setInterval(ScrollLeft, delaytime);
			oMarquee.hover(function(){
				clearInterval(oScroll);
			}, function(){
				oScroll=setInterval(ScrollLeft, delaytime);
			});
			break;
		case "up":
		default:
			var oScroll = setInterval(ScrollUp, delaytime);
			oMarquee.hover(function(){
				clearInterval(oScroll);
			}, function(){
				oScroll=setInterval(ScrollUp, delaytime);
			});
	}
}
//内容无缝滚动，不用脚本复制
function Marquee2(marqueeBox, delaytime, direction, itemCell){
	if(delaytime == undefined)delaytime = 50;
	if(direction == undefined)direction = "up";
	if(itemCell == undefined)itemCell = "ul";
	var oMarquee = jQuery(marqueeBox);
	var oMarqueeCon = oMarquee.find(itemCell)[0];
	var oMarqueeCopy = oMarquee.find(itemCell)[1];

	var ScrollUp = function(){
		if(oMarqueeCopy.offsetHeight-oMarquee[0].scrollTop<=0){
			oMarquee[0].scrollTop = 0;
		}else{
			oMarquee[0].scrollTop++;
		}
	}
	
	var ScrollLeft = function(){
		if(oMarqueeCopy.offsetWidth-oMarquee[0].scrollLeft<=0){
			oMarquee[0].scrollLeft = 0;
		}else{
			oMarquee[0].scrollLeft++;
		}
	}
	
	switch(direction){
		case "left":
			var oScroll=setInterval(ScrollLeft, delaytime);
			oMarquee.hover(function(){
				clearInterval(oScroll);
			}, function(){
				oScroll=setInterval(ScrollLeft, delaytime);
			});
			break;
		case "up":
		default:
			var oScroll = setInterval(ScrollUp, delaytime);
			oMarquee.hover(function(){
				clearInterval(oScroll);
			}, function(){
				oScroll=setInterval(ScrollUp, delaytime);
			});
	}
}