//check browser type
var browser = {
IE: !!(window.attachEvent && !window.opera),
Opera: !!window.opera,
WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
Gecko: navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1, //firefox
MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
}
//getElementById
function $(idStr) {
if (idStr != null) {
element = document.getElementById(idStr);
return element;
}
return false;
}
//getElementsByName
function $N(nameStr) {
if (nameStr != null) {
var elements = new Array();
elements = document.getElementsByName(nameStr);
return elements;
}
return false;
}
//getElementsByTagName
function $T(nameStr) {
if (nameStr != null) {
var elements = new Array();
elements = document.getElementsByTagName(nameStr);
return elements;
}
return false;
}
//popup layer
function popupLayer(ev, id, sw, sh, cobj) {
var e = window.event || ev;
this.title = '';
this.bottom = '';
this.content = '';
cobj = cobj || '__content__';
var sw1 = sw == null ? 350 : sw;
this.show = function() {
var layer = '';
layer += '' + this.content + '
';
var bb = '';
if (this.bottom == '') bb = 'height: 20px; ';
layer += '' + this.bottom + '
';
if (!document.getElementById(id)) {
var _div = document.createElement('div');
_div.id = id;
_div.style.left = (((window.innerWidth || document.body.offsetWidth) - sw1) / 2) + 'px';
_div.style.bottom = '50%';
_div.style.marginBottom = '-150px';
_div.style.width = sw1 + 'px';
if (sh != null) _div.style.height = sh + 'px';
_div.style.background = '#fff';
_div.style.position = 'absolute';
_div.style.zIndex = '999';
_div.innerHTML = layer;
document.body.appendChild(_div);
}
var offTop = document.getElementById(id).offsetTop;
if (offTop < 0) {
if (offTop > -100) {
offTop = -100;
} else {
offTop -= 100;
}
var marBot = -150;
marBot += offTop;
document.getElementById(id).style.marginBottom = marBot + 'px';
} else {
if (offTop > 300) document.getElementById(id).style.marginBottom = '-0px';
if (offTop < 100) document.getElementById(id).style.marginBottom = '-220px';
}
document.getElementById(id).style.height = document.getElementById(id).offsetHeight + 'px';
}
}
//remove popup layer
function closeLayer(id) {
document.body.removeChild(document.getElementById(id));
}
//move popup layer
function oMove(obj, even) {
var otop, oleft;
var e = window.event || even;
otop = e.clientY - obj.offsetTop;
oleft = e.clientX - obj.offsetLeft;
if (document.all) obj.setCapture();
obj.onmousemove = function(e) {
e = e || window.event;
obj.style.left = (e.clientX - oleft) + 'px';
obj.style.top = (e.clientY - otop) + 'px';
}
obj.onmouseup = function() {
obj.onmousemove = null;
if (document.all) obj.releaseCapture();
}
}
//get upload ui
function getUploadUI(id, type, prev) {
//id : 将上传结果地址返回给该ID
//type : 上传文件类型
//prev : 预览元素ID
prev = prev || '';
var html = '选择要上传的文件：
';
html += '';
if (browser.IE) {
if (prev != '' && type == 'Image') {
html += ' ![]()
';
}
}
return html;
}
//check all checkbox
function checkAll(e, name) {
var sub = $N(name);
for (var i = 0; i < sub.length; i++) {
if (!sub.item(i).disabled) sub.item(i).checked = e.checked;
}
}
//get selected checkbox
function getAllSelected(name, split) {
var sub = $N(name);
var tmp = '';
split = split || ',';
for (var i = 0; i < sub.length; i++) {
if (sub.item(i).checked) tmp += split + sub.item(i).value;
}
if (tmp != '') tmp = tmp.substring(split.length);
return tmp;
}
//alt color
function setBGColor(e, color) {
e.style.background = color;
}
//框架自适应高度
function SetWinHeight(obj) {
var win = obj;
if (document.getElementById) {
if (win && !window.opera) {
if (win.contentDocument && win.contentDocument.body.offsetHeight) {
win.height = win.contentDocument.body.offsetHeight;
}
else if (win.Document && win.Document.body.scrollHeight) {
win.height = win.Document.body.scrollHeight;
}
}
}
}
//打开颜色选择器
function getColor(e, ic) {
var m = window.showModalDialog('/js/color.html', ic, 'dialogWidth=254px; dialogHeight=223px; center=yes; help=no; status=no; scroll=no');
if (m != null && m != undefined) {
e.value = m;
e.style.backgroundColor = m;
}
}