var img1 ; 
 function imgSize( imgsrc ){
  img1= new Image(); 
  img1.src=(imgsrc.src); 
  imgControll(imgsrc); 
 } 

 function imgControll(imgsrc){ 
  if((img1.width!=0)&&(img1.height!=0)){ 
   viewImage(imgsrc); 
  }else{ 
   controller="imgControll('"+imgsrc+"')"; 
   intervalID=setTimeout(controller,20); 
  } 
 } 

 function viewImage(imgsrc){
  var width = img1.width;
  var height = img1.height;

  var temp = 0; 
  var max_width= 650;   // À̹ÌÁöÀÇ ÃÖ´ë Å©±â     
  var max_height= 10000;   // À̹ÌÁöÀÇ ÃÖ´ë Å©±â     
  
  if ( width > max_width ) {  // À̹ÌÁö°¡ 550º¸´Ù Å©´Ù¸é ³Êºñ¸¦ 550À¸·Î ¸Â¿ì°í ºñÀ²¿¡ ¸ÂÃç ¼¼·Î°ªÀ» º¯°æÇÑ´Ù.      
     height = height/(width / max_width);
     width = max_width;     
  }
  if ( height > max_height ) {  // À̹ÌÁö°¡ 400º¸´Ù Å©´Ù¸é ³Êºñ¸¦ 400À¸·Î ¸Â¿ì°í ºñÀ²¿¡ ¸ÂÃç ¼¼·Î°ªÀ» º¯°æÇÑ´Ù.      
     width = width/(height / max_height);
     height = max_height;
  }
  imgsrc.width = width;
  imgsrc.height = height;
 }