// JavaScript Document

function img_display(img){
	
	var scrOfY = 0;
  if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape compliant
    scrOfY = window.pageYOffset;
  } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM compliant
    scrOfY = document.body.scrollTop;
  } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6 standards compliant mode
    scrOfY = document.documentElement.scrollTop;
  }
	
	var img = img;
	var img_src = "imgBg/"+img+".jpg";
	var display_area = document.getElementById("display");
	var top = +scrOfY;
	display_area.style.top = top+"px";
	display_area.style.right = document.getElementById("wrapper").style.right;
	var image = document.createElement("img");
	image.src = img_src;
	
	if(display_area.childNodes.length<1){
	display_area.appendChild(image);
	image.src = img_src;
	}
	
	else{
	var image = display_area.replaceChild(image, display_area.childNodes[0]);
	}
}