经过了半天的时间，这个使用JQuery开发出来的左右滚动菜单功能也算是完成了，暂时还没有发现错误的现象。现在把代码完整的代码拿出来分享！
scrollable.js
JQuery左右滚动菜单特效脚本代码引用片段：
scrollable = function(content, render, options, beforeScroll) {
options.scrollable_class = options.scrollable_class || 'ui-scrollable';
options.scrollable_left_class = options.scrollable_left_class || 'ui-scrollable-left';
options.scrollable_container_class = options.scrollable_container_class || 'ui-scrollable-container';
options.scrollable_right_class = options.scrollable_right_class || 'ui-scrollable-right';
options.leftText = options.leftText || '';
options.rightText = options.rightText || '';
options.delay = options.delay || 20;
options.speed = options.speed || 5;
options.speedup = options.speedup || 10;
options.resizeEvent = options.resizeEvent || false;
var render = (typeof render == 'string' ? $(render) : render);
var content = (typeof content == 'string' ? $(content) : content);
var scrollable = $('')
.attr('id', 'scrollable_' + content.attr('id'))
.attr('className', options.scrollable_class);
var left = $('')
.attr('id', 'scrollable_left_' + content.attr('id'))
.attr('className', options.scrollable_left_class);
left.text(options.leftText);
var container = $('')
.attr('id', 'scrollable_container_' + content.attr('id'))
.attr('className', options.scrollable_container_class);
content.css('line-height', '29px')
.css('position', 'relative')
.css('left', '0px')
.css('overflow', 'hidden')
.css('float', 'left');
var right = $('')
.attr('id', 'scrollable_right_' + content.attr('id'))
.attr('className', options.scrollable_right_class);
right.text(options.rightText);
show = function() {
scrollable.appendTo(render);
container.appendTo(scrollable);
left.css('display', '');
right.css('display', '');
content.appendTo(container);
left.prependTo(scrollable);
right.appendTo(scrollable);
if(content.width() <= container.width() + 20) {
scrollable.remove('.' + options.scrollable_left_class);
scrollable.remove('.' + options.scrollable_right_class);
left.css('display', 'none');
right.css('display', 'none');
container.width(content.width());
scrollable.width(container.width());
}
container.position = {left: container.css('left').substr(0, -2)}
container.position.right = container.position.left + container.width();
content.position = {left: new Number(content.css('left').substr(0, -2))}
content.position.right = content.position.left + content.width();
};
show();
var originalBroswerWidth = document.body.clientWidth;
window.onresize = function() {
if(options.resizeEvent) {
var newBroswerWidth = document.body.clientWidth;
var percent = newBroswerWidth / originalBroswerWidth;
container.width(container.width() * percent);
scrollable.width(container.width() + left.width() + right.width());
show();
}
originalBroswerWidth = document.body.clientWidth;
}
var scroll = false;
move = function(distance) {
var newLeft = content.position.left + distance;
var newRight = content.position.right + distance;
if(distance > 0 && newLeft > container.position.left) {
distance = container.position.left - content.position.left;
scroll = false;
} else if(distance < 0 && newRight < container.position.right) {
distance = content.position.right - container.position.right;
scroll = false;
}
newLeft = content.position.left + distance;
newRight = content.position.right + distance;
scorll = beforeScroll ? beforeScroll(
{left: content.position.left, right: content.position.right},
{left: newLeft, right: newRight}) : scroll;
if(scroll) {
content.css('left', newLeft + 'px');
content.position.left += distance;
content.position.right += distance;
setTimeout('move(' + distance + ')', options.delay);
}
}
left.mouseover(function() {
scroll = true;
move(options.speed);
});
right.mouseover(function() {
scroll = true;
move(-options.speed);
});
left.mouseout(function() {
scroll = false;
});
right.mouseout(function() {
scroll = false;
});
left.mousedown(function() {
scroll = true;
move(options.speedup);
});
right.mousedown(function() {
scroll = true;
move(-options.speedup);
});
left.mouseup(function() {
scroll = false;
});
right.mouseup(function() {
scroll = false;
});
}
Default.aspx
JQuery左右滚动菜单特效页面代码引用片段：
JQuery左右滚动菜单特效 .scrollable-render{} .button{cursor: hand;} .button:hover > * {background-position: 0 -42px;} .button_left{float: left; background: url(menu_out_left.gif) no-repeat 0 0; width: 4px; height: 26px;} .button_center{float: left; background: url(menu_out_bj.gif) repeat-x 0 0; width: 80px; text-align: center} .button_right{float: left; background: url(menu_out_right.gif) no-repeat 0 0; width: 4px; height: 26px;} .ui-scrollable{width: 800px; height: 29px;} .ui-scrollable-container{float: left; width: 780px; height: inherit; position: relative; overflow: hidden; border-bottom: 1px solid #DDDDDD;} .ui-scrollable-content{float: left; width: 1770px; height: inherit;} .ui-scrollable-left{float: left; background: url(scrollable_left_out.gif) no-repeat 0 0; width: 10px; height:29px; cursor: hand;} .ui-scrollable-right{float: left; background: url(scrollable_right_out.gif) no-repeat 0 0; width: 10px; height:29px; cursor: hand;} .ui-scrollable-left:hover{ float: left; background: url(scrollable_left_on.gif) no-repeat 0 0; width: 10px; height:29px; cursor: hand;} .ui-scrollable-right:hover{float: left; background: url(scrollable_right_on.gif) no-repeat 0 0; width: 10px; height:29px; cursor: hand;} 菜单一 菜单二 菜单三 菜单四 菜单五 菜单六 菜单七 菜单八 菜单九 菜单十 菜单一 菜单二 菜单三 菜单四 菜单五 菜单六 菜单七 菜单八 菜单九 菜单十
当然，我们还需要引用JQuery框架文件，我这里用的是jquery-1.4.2.min.js，自己可以在网上搜索下载，我就不上传到这里了。整个JQuery左右滚动菜单特效就是这个样子了，自己觉得还行，希望能帮到一些有需要的朋友。
