//function showimage(imageUrl,width,height) {
//document.body.onload=preLoadImage(imageUrl);
//    var imgObj = new Image();
//    var descHeight;
//    var descWidth;
//    imgObj.src = imageUrl;
//    if((width/imgObj.width)>(height/imgObj.height)) {
//        descHeight = height;
//        descWidth = (height/imgObj.height)*imgObj.width;
//    } else {
//        descWidth = width;
//        descHeight = (width/imgObj.width)*imgObj.height;
//    }
//    document.write("<img hspace=5 vspace=5 src="+imgObj.src+" border=0 width=" + descWidth + " height=" + descHeight + ">");
//}
function drawImage(ImgD,width,height) {
var image=new Image();
image.src=ImgD.src;
if((width/image.width)>(height/image.height)) {
ImgD.height = height;
ImgD.width = (height/image.height)*image.width;
} else {
ImgD.width = width;
ImgD.height = (width/image.width)*image.height;
}
ImgD.alt = image.width + "x" + image.height;
}
function drawImageByStandard(ImgD,standard) {
var image=new Image();
image.src=ImgD.src;
if ((image.width > standard)  || (image.height > standard)) {
if (image.width > image.height){
ImgD.width = standard;
ImgD.height = (standard/image.width)*image.height;
} else {
ImgD.height = standard;
ImgD.width = (standard/image.height)*image.width;
}
}
}
function showimage(imageUrl,size) {
var imgObj = new Image()
imgObj.src = imageUrl;
if(imgObj.width > imgObj.height) {
document.write("<img src="+imgObj.src+" border=1  class=black-border height=" + imgObj.height*size/imgObj.width + " width=" + size + ">");
} else if(imgObj.width < imgObj.height) {
document.write("<img src="+imgObj.src+" border=1 class=black-border height=" + size + " width="+ imgObj.width*size/imgObj.height +">");
} else {
document.write("<img src="+imgObj.src+" border=1 class=black-border height=" + size + " width="+ size + " >");
}
}
function imageauto(obj,num){
var image=new Image();
image.src=obj.src;
//alert(image.width);
if(image.width >= num){
obj.width = num;
}else{
obj.width = image.width;
}
}
//function imageZoom(imgObj,size){
//    var i ;
//    if(imgObj.width>imgObj.height)
//        i=size/imgObj.width;
//    else
//        i=size/imgObj.height;
//    imgObj.style.zoom=i;
//}
/**判断是否选择数据后转向*/
function gotoUrl(selectObject, str) {
if(!checkSelected(selectObject)) {
return;
}
if(!checkNotZero(selectObject)) {
return;
}
window.open(str + selectedValue(selectObject));
}
function gotoLocal(selectObject, str) {
if(!checkSelected(selectObject)) {
return;
}
if(!checkNotZero(selectObject)) {
return;
}
window.location = str + selectedValue(selectObject);
}
/**直接转向*/
function gotoUrlDirect(str) {
window.open(str);
}
function gotoLocalDirect(str) {
window.location = str;
}
function checkNotZero(selectObject) {
if( selectedValue(selectObject) == 0 ) {
alert("很抱歉您选到分隔符号上了");
return false;
} else {
return true;
}
}
function selectedValue(selectObject) {
var currentIndex = selectObject.selectedIndex ;
var currentId = selectObject.options[currentIndex].value ;
return currentId;
}
/***检查是否选中列表中的数据 true选中 false没有选择*/
function checkSelected(selectObject) {
var onSelect = false;
if (selectObject.selectedIndex == -1) {
onSelect = false;
} else {
onSelect = true;
}
if(!onSelect) {
alert("请选择列表中数据");
return false;
} else {
return true;
}
}
/*** selectObject为select元素， gotoUrl为上移的url*/
function upSelected(selectObject, gotoUrl, urlVar) {
if(!checkSelected(selectObject)) {
return ;
}
var currentIndex = selectObject.selectedIndex ;
var currentId = selectObject.options[currentIndex].value ;
if(currentIndex > 0) {
var upId = selectObject.options[currentIndex-1].value ;
}
if(currentIndex == 0 || currentId == 0 ||  upId <= 0) {
alert("不能上移了");
} else {
str = gotoUrl + "?currentid=" + currentId + "&upid=" + upId + urlVar;
window.location = str;
}
}
/*** selectObject为select元素， gotoUrl为下移的url*/
function downSelected(selectObject, gotoUrl, urlVar) {
if(!checkSelected(selectObject)) {
return ;
}
var currentIndex = selectObject.selectedIndex ;
var maxIndex = selectObject.length-1 ;
var currentId = selectObject.options[currentIndex].value ;
if(currentIndex < maxIndex) {
var downId = selectObject.options[currentIndex+1].value ;
}
if( currentId == 0 || downId == 0|| currentIndex >= maxIndex ) {
alert("不能下移了");
} else {
str = gotoUrl + "?currentid=" + currentId + "&downid=" + downId + urlVar;
window.location = str;
}
}
/*** 设置隐含字段 **/
function setHiddenId(selectObject, setObject) {
if(!checkSelected(selectObject)) {
return false;
}
if(!checkNotZero(selectObject)) {
return false;
}
setObject.value=selectedValue(selectObject);
return true;
}
/*** 删除 **/
function del(selectObject, str) {
if(!checkSelected(selectObject)) {
return false;
}
if(!checkNotZero(selectObject)) {
return false;
}
var temp = window.confirm("你确定要删除该项吗?" );
if(temp==true)
window.location = str + selectedValue(selectObject);
else
return false;
}
function selectWinOpenId(selObj, focusObj, from) {
for(var i = 0; i < selObj.length; i++) {
if(selObj[i].selected) {
if(selObj[i].value <= 0) {
alert("很抱歉您选到无效选项上了");
return;
}
for(var j = 0; j < focusObj.length; j++) {
if(focusObj[j].value == selObj[i].value) {
focusObj[j].selected = true;
if(from == null || from.indexOf("search") < 0) {
if(focusObj.name.indexOf("category_id_") >= 0) {
window.opener.checkCatalog();
if(focusObj.name.indexOf("category_id_1") >= 0) {
window.opener.setEditor(window.opener.catInfo[selObj[i].value],window.opener.document.all.editor);
}
} else if(focusObj.name.indexOf("subject_id_") >= 0) {
window.opener.checkSubject();
}
}
window.close();
window.opener.focus();
return;
}
}
window.opener.addOption(focusObj, selObj[i].value, selObj[i].innerText, from);
window.close();
window.opener.focus();
return;
}
}
}
function addListener(el,eventType,fn){
if(el.addEventListener){
el.addEventListener(eventType,fn,false);
}else if(el.attachEvent){
el.attachEvent("on" + eventType,fn);
}else{
el["on"+eventType] = fn;
}
}
function vote() {
var form = document.forms['voteForm'];
var selectObj = document.getElementsByName("optionId");
var selectFlag = false;
if(selectObj != null) {
for(var i = 0; i < selectObj.length; i++) {
if(selectObj[i].checked) {
selectFlag = true;
break;
}
}
if(!selectFlag) {
alert("请至少选中一项!")
return;
}
var objBtn = form.elements['event_submit_do_vote'];
objBtn.click();
}
}