//方法：setSelectReadOnly用于设定极select控件ReadOnly,
//这个一个模拟只读不是真的只读
//使用了onbeforeactivate,onfocus,onmouseover,onmouseout事件
//示例：<imgsrc='img.jpg'onload='ImgAutoSize(ImgD,FitWidth,FitHeight)'>;
//createbysl
//---------------------------------------------------
functionImgAutoSize(imgD,FitWidth,FitHeight)
{
varimage1=newImage();
image1.onload=function()
{
if(this.width>0&&this.height>0)
{
if(this.width/this.height>=FitWidth/FitHeight)
{
if(this.width>FitWidth)
{
imgD.width=FitWidth;
imgD.height=(this.height*FitWidth)/this.width;
}
else
{
imgD.width=this.width;
imgD.height=this.height;
}
}
else
{
if(this.height>FitHeight)
{
imgD.height=FitHeight;
imgD.width=(this.width*FitHeight)/this.height;
}
else
{
imgD.width=this.width;
imgD.height=this.height;
}
}
}
image1=null;
}

image1.src=imgD.src;
imgD.style.cursor='hand';
imgD.onclick=function(){openWin(this.src,'imgphoto',600,400)};
imgD.title="点击在新窗口中查看原图";
}