function SetImgAutoSize(img) 
{ 

var MaxWidth=90;
var MaxHeight=90;
var HeightWidth=img.offsetHeight/img.offsetWidth;
var WidthHeight=img.offsetWidth/img.offsetHeight;

if(img.readyState!="complete"){
return false;
}

if(img.offsetWidth>MaxWidth){ 
img.width=MaxWidth; 
img.height=MaxWidth*HeightWidth; 
} 
if(img.offsetHeight>MaxHeight){ 
img.height=MaxHeight; 
img.width=MaxHeight*WidthHeight; 
} 
} 

function SetImgSize(img,w,h) 
{ 

var MaxWidth=w;
var MaxHeight=h;
var HeightWidth=img.offsetHeight/img.offsetWidth;
var WidthHeight=img.offsetWidth/img.offsetHeight;

if(img.readyState!="complete"){
return false;
}

if(img.offsetWidth>MaxWidth){ 
img.width=MaxWidth; 
img.height=MaxWidth*HeightWidth; 
} 
if(img.offsetHeight>MaxHeight){ 
img.height=MaxHeight; 
img.width=MaxHeight*WidthHeight; 
} 
}