<HTML> <HEAD> <TITLE>日期选择器</TITLE> <SCRIPT type="text/javascript"> /** * 返回日期 * @param d the delimiter * @param p the pattern of your date * @author Xinge(修改) */ String.prototype.toDate = function(x, p) { if(x == null) x = "-"; if(p == null) p = "ymd"; var a = this.split(x); var y = parseInt(a[p.indexOf("y")]); //remember to change this next century ;) if(y.toString().length <= 2) y += 2000; if(isNaN(y)) y = new Date().getFullYear(); var m = parseInt(a[p.indexOf("m")]) - 1; var d = parseInt(a[p.indexOf("d")]); if(isNaN(d)) d = 1; return new Date(y, m, d); }
/** * 格式化日期 * @param d the delimiter * @param p the pattern of your date * @author Xinge(修改) */ Date.prototype.format = function(style) { var o = { "M+" : this.getMonth() + 1, //month "d+" : this.getDate(), //day "h+" : this.getHours(), //hour "m+" : this.getMinutes(), //minute "s+" : this.getSeconds(), //second "w+" : "天一二三四五六".charAt(this.getDay()), //week "q+" : Math.floor((this.getMonth() + 3) / 3), //quarter "S" : this.getMilliseconds() //millisecond } if(/(y+)/.test(style)) { style = style.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length)); } for(var k in o){ if(new RegExp("("+ k +")").test(style)){ style = style.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length)); } } return style; };
this.form.prevMonth.onclick = function () {calendar.goPrevMonth(this);} this.form.nextMonth.onclick = function () {calendar.goNextMonth(this);}
this.form.calendarClear.onclick = function () {calendar.dateControl.value = "";calendar.hide();} this.form.calendarClose.onclick = function () {calendar.hide();} this.form.calendarYear.onchange = function () {calendar.update(this);} this.form.calendarMonth.onchange = function () {calendar.update(this);} this.form.calendarToday.onclick = function () { var today = new Date(); calendar.date = today; calendar.year = today.getFullYear(); calendar.month = today.getMonth(); calendar.changeSelect(); calendar.bindData(); calendar.dateControl.value = today.format(calendar.dateFormatStyle); calendar.hide(); }
}
//年份下拉框绑定数据 Calendar.prototype.bindYear = function() { var cy = this.form.calendarYear; cy.length = 0; for (var i = this.beginYear; i <= this.endYear; i++){ cy.options[cy.length] = new Option(i + Calendar.language["year"][this.lang], i); } }
//月份下拉框绑定数据 Calendar.prototype.bindMonth = function() { var cm = this.form.calendarMonth; cm.length = 0; for (var i = 0; i < 12; i++){ cm.options[cm.length] = new Option(Calendar.language["months"][this.lang][i], i); } }
//改变SELECT选中状态 Calendar.prototype.changeSelect = function() { var cy = this.form.calendarYear; var cm = this.form.calendarMonth; for (var i= 0; i < cy.length; i++){ if (cy.options[i].value == this.date.getFullYear()){ cy[i].selected = true; break; } } for (var i= 0; i < cm.length; i++){ if (cm.options[i].value == this.date.getMonth()){ cm[i].selected = true; break; } } }
//更新年、月 Calendar.prototype.update = function (e){ this.year = e.form.calendarYear.options[e.form.calendarYear.selectedIndex].value; this.month = e.form.calendarMonth.options[e.form.calendarMonth.selectedIndex].value; this.date = new Date(this.year, this.month, 1); this.changeSelect(); this.bindData(); }
//绑定数据到月视图 Calendar.prototype.bindData = function () { var calendar = this; var dateArray = this.getMonthViewArray(this.date.getYear(), this.date.getMonth()); var tds = this.getElementById("calendarTable").getElementsByTagName("td"); for(var i = 0; i < tds.length; i++) { //tds[i].style.color = calendar.colors["td_word_light"]; tds[i].style.backgroundColor = calendar.colors["td_bg_out"]; tds[i].onclick = function () {return;} tds[i].onmouseover = function () {return;} tds[i].onmouseout = function () {return;} if (i > dateArray.length - 1) break; tds[i].innerHTML = dateArray[i]; if (dateArray[i] != " "){ tds[i].onclick = function () { if (calendar.dateControl != null){ calendar.dateControl.value = new Date(calendar.date.getFullYear(), calendar.date.getMonth(), this.innerHTML).format(calendar.dateFormatStyle); } calendar.hide(); } tds[i].onmouseover = function () { this.style.backgroundColor = calendar.colors["td_bg_over"]; } tds[i].onmouseout = function () { this.style.backgroundColor = calendar.colors["td_bg_out"]; } if (new Date().format(calendar.dateFormatStyle) == new Date(calendar.date.getFullYear(), calendar.date.getMonth(), dateArray[i]).format(calendar.dateFormatStyle)) { //tds[i].style.color = calendar.colors["cur_word"]; tds[i].style.backgroundColor = calendar.colors["cur_bg"]; tds[i].onmouseover = function () { this.style.backgroundColor = calendar.colors["td_bg_over"]; } tds[i].onmouseout = function () { this.style.backgroundColor = calendar.colors["cur_bg"]; } }//end if } } }
//根据年、月得到月视图数据(数组形式) Calendar.prototype.getMonthViewArray = function (y, m) { var mvArray = []; var dayOfFirstDay = new Date(y, m, 1).getDay(); var daysOfMonth = new Date(y, m + 1, 0).getDate(); for (var i = 0; i < 42; i++) { mvArray[i] = " "; } for (var i = 0; i < daysOfMonth; i++){ mvArray[i + dayOfFirstDay] = i + 1; } return mvArray; }
//扩展 document.getElementById(id) 多浏览器兼容性 Calendar.prototype.getElementById = function(id){ if (typeof(id) != "string" || id == "") return null; if (document.getElementById) return document.getElementById(id); if (document.all) return document.all(id); try {return eval(id);} catch(e){ return null;} }
//扩展 object.getElementsByTagName(tagName) Calendar.prototype.getElementsByTagName = function(object, tagName){ if (document.getElementsByTagName) return document.getElementsByTagName(tagName); if (document.all) return document.all.tags(tagName); }
//取得HTML控件绝对位置 Calendar.prototype.getAbsPoint = function (e){ var x = e.offsetLeft; var y = e.offsetTop; while(e = e.offsetParent){ x += e.offsetLeft; y += e.offsetTop; } return {"x": x, "y": y}; }
//显示日历 Calendar.prototype.show = function (dateControl, popControl) { if (dateControl == null){ throw new Error("arguments[0] is necessary") } this.dateControl = dateControl; if (dateControl.value.length > 0){ this.date = new Date(dateControl.value.toDate()); this.year = this.date.getFullYear(); this.month = this.date.getMonth(); this.changeSelect(); this.bindData(); } if (popControl == null){ popControl = dateControl; } var xy = this.getAbsPoint(popControl); this.panel.parentNode.style.left = xy.x + "px"; this.panel.parentNode.style.top = (xy.y + dateControl.offsetHeight) + "px"; this.panel.parentNode.style.visibility = "visible"; }