// JScript 文件

 
                 /* slide show */
                 
                 function cnblogs$(id) { return document.getElementById(id); }
                    function addBtn() {
                        if (!cnblogs$('ibanner') || !cnblogs$('ibanner_pic')) return;
                        var picList = cnblogs$('ibanner_pic').getElementsByTagName('ul');
                        if (picList.length == 0) return;
                        var btnBox = document.createElement('div');
                        btnBox.setAttribute('id', 'ibanner_btn');
                        var SpanBox = '';
                        for (var i = 1; i <= picList.length; i++) {
                            var spanList = '<span class="normal">' + i + '</span>';
                            SpanBox += spanList;
                        }
                        btnBox.innerHTML = SpanBox;
                        cnblogs$('ibanner').appendChild(btnBox);
                        cnblogs$('ibanner_btn').getElementsByTagName('span')[0].className = 'current';
                        for (var m = 0; m < picList.length; m++) {
                            var attributeValue = 'picLi_' + m
                            picList[m].setAttribute('id', attributeValue);
                        }
                    }

                    var autoKey = false;
                    function iBanner() {
                        if (!cnblogs$('ibanner') || !cnblogs$('ibanner_pic') || !cnblogs$('ibanner_btn')) return;
                        cnblogs$('ibanner').onclick = function() { autoKey = true };
                        cnblogs$('ibanner').onclick = function() { autoKey = false };
                        var btnList = cnblogs$('ibanner_btn').getElementsByTagName('span');
                        var picList = cnblogs$('ibanner_pic').getElementsByTagName('ul');
                        if (picList.length == 1) return;
                        picList[0].style.zIndex = '2';
                        for (var m = 0; m < btnList.length; m++) {
                            btnList[m].onclick = function() {
                                for (var n = 0; n < btnList.length; n++) {
                                    if (btnList[n].className == 'current') {
                                        var currentNum = n;
                                    }
                                }
                                classNormal();
                                picZ();
                                this.className = 'current';
                                picList[currentNum].style.zIndex = '2';
                                var z = this.childNodes[0].nodeValue - 1;
                                picList[z].style.zIndex = '3';
                                if (currentNum != z) {
                                    picList[z].style.top = '8';
                                }
                            }
                        }
                    }
                    
                    function classNormal() {
                    var btnList = cnblogs$('ibanner_btn').getElementsByTagName('span');
                    for (var i = 0; i < btnList.length; i++) {
                        btnList[i].className = 'normal';
                    }
                }
                function picZ() {
                    var picList = cnblogs$('ibanner_pic').getElementsByTagName('ul');
                    for (var i = 0; i < picList.length; i++) {
                        picList[i].style.zIndex = '1';
                    }
                }

                setInterval('autoBanner()', 5000);
                function autoBanner() {
                    if (!cnblogs$('ibanner') || !cnblogs$('ibanner_pic') || !cnblogs$('ibanner_btn') || autoKey) return;
                    var btnList = cnblogs$('ibanner_btn').getElementsByTagName('span');
                    var picList = cnblogs$('ibanner_pic').getElementsByTagName('ul');
                    if (picList.length == 1) return;
                    for (var i = 0; i < btnList.length; i++) {
                        if (btnList[i].className == 'current') {
                            var currentNum = i;
                        }
                    }
                    if (currentNum == (picList.length - 1)) {
                        classNormal();
                        picZ();
                        btnList[0].className = 'current';
                        picList[currentNum].style.zIndex = '2';
                        picList[0].style.zIndex = '3';
                        picList[0].style.top = '8';
                    } else {
                        classNormal();
                        picZ();
                        var nextNum = currentNum + 1;
                        btnList[nextNum].className = 'current';
                        picList[currentNum].style.zIndex = '2';
                        picList[nextNum].style.zIndex = '3';
                        picList[nextNum].style.top = '8';
                    }
                }