function Show(){
   var ttt=document.getElementById('HidePic');
   var sss=document.getElementById('Pic');
   var x=ttt.width;
   var y=ttt.height;
   var n=100;
   if (x>n&&y<=n){y*=n/x;x=n;}
   if (x<=n&&y>n){x*=n/y;y=n;}
   if (x>n&&y>n) {
        if (x>y){y*=n/x;x=n}
       else if (x<y){x*=n/y;y=n}
       else {y=n;x=n};
   }
   sss.width=x;sss.height=y;
   sss.src=ttt.src;
   document.getElementById('par').innerHTML="Реальный размер: "+ttt.width+" x "+ttt.height+"<br>";
   document.getElementById('par').innerHTML+="Размер в рамке: "+x+" x "+y+"<br>";
}

function PreLoadImg(sss){
   var ttt=document.getElementById('HidePic');
   ttt.src=sss.src;
   Show();
}
function resizing_pictures(imag,imag_width,imag_height){
   var x=imag.width;
   var y=imag.height;
   var sx=imag_width/x;
   var sy=imag_height/y;
   if (x>imag_width&&y<=imag_height){
   y*=sx;x=imag_width;}
   else if (x<=imag_width&&y>imag_height){x*=sy;y=imag_height;}
   else if (x>imag_width&&y>imag_height) {
   
        if (sx<sy){y*=sx;x*=sx}
       else if (sx>=sy){x*=sy;y*=sy}
       else {y=imag_height;x=imag_width};
   }
   imag.width=x;
   imag.height=y;
 imag.style.visibility='visible';
}