function AdjustSize(target_img,target_size){
	var newImg = new Image();
	newImg.src=target_img.src;
	// alert(newImg.width + " / " + newImg.height);
	if(newImg.width >= newImg.height){
		rate=target_size/newImg.width;
		newImg.width=target_size;
		newImg.height=newImg.height*rate;
	}else{
		rate=target_size/newImg.height;
		newImg.height=target_size;
		newImg.width=newImg.width*rate;
	}
	// alert(newImg.width + " / " + newImg.height);
	target_img.width=newImg.width;
	target_img.height=newImg.height;
	target_img.style.display='inline';
}