var imgObj;
function checkImg(theURL,winName){
// 对象是否已创建
if (typeof(imgObj) == "object"){
// 是否已取得了图像的高度和宽度
if ((imgObj.width != 0) && (imgObj.height != 0))
// 根据取得的图像高度和宽度设置弹出窗口的高度与宽度，并打开该窗口
// 其中的增量 20 和 30 是设置的窗口边框与图片间的间隔量
//OpenFullSizeWindow(theURL,winName, ",width=" + (imgObj.width+0) + ",height=" + (imgObj.height+0));
DynaWindow(theURL,winName,imgObj.width,imgObj.height);
else
// 因为通过 Image 对象动态装载图片，不可能立即得到图片的宽度和高度，所以每隔100毫秒重复调用检查
setTimeout("checkImg('" + theURL + "','" + winName + "')", 100)
}
}
function ow(theURL) {
winName = "top";
// 创建图像对象
imgObj = new Image();
// 设置图像源
imgObj.src = theURL;
// 开始获取图像大小
checkImg(theURL, winName)
}
function DynaWindow(url,winName,w,h) {
var disp, sBaseCmd;
// 弹出窗口外观参数
xposition=0; yposition=0;
if ((parseInt(navigator.appVersion) >= 4 ))
{
xposition = (screen.width - w) / 2;
yposition = (screen.height - h) / 2;
}
// 弹出窗口外观参数
sBaseCmd= "width=" + w + ","
+ "height=" + h + ","
+ "location=0,"
+ "menubar=0,"
+ "resizable=0,"
+ "scrollbars=0,"
+ "status=0,"
+ "titlebar=0,"
+ "toolbar=0,"
+ "hotkeys=0,"
+ "screenx=" + xposition + "," //仅适用于Netscape
+ "screeny=" + yposition + "," //仅适用于Netscape
+ "left=" + xposition + "," //IE
+ "top=" + yposition; //IE // 打开窗口
disp = window.open(url,winName,"height=" + h + ",width=" + w + sBaseCmd);
// 聚焦窗口
disp.focus();
content = '';
content += '点击图片关闭窗口';
content += '';
content += '';
content += '
';
content += '