//显示图片限制大小js
function showpic(picurl,picwidth,picheight)
{
 var iHeight;
 var iWidth;
 
    iWidth = picwidth;
    iHeight = picheight;
    if(iWidth >680) 
    {
       iWidth=680;
       iHeight=iHeight*iWidth/picwidth;
    }
    
    //if(iHeight >500) 
    //{
       //iHeight=500;
       //iWidth=picwidth*iHeight/picheight;
    //} 
   var newurl="<img src='"+picurl + "' width="+iWidth +" height="+iHeight +" border=0>";
     document.write(newurl);
}
function AcPic(picurl,db,w,h){
	var iurl;
	var iDB;
	iurl=picurl;
	iDB=db;
	
	this.location.href="photo.asp?" + iurl + "." + iDB + "'," + w + "," + h;
	return false;
}