// JavaScript Document

window.onload=function(){
  var mainHeight,divHeight,maincol,leftcol,content,contentHeight,block;
     
  leftcol = document.getElementById('sidebar-first');
  maincol = document.getElementById('main-body'); 
	content = document.getElementById('content');
	block = document.getElementById('block-views-random-image-block');
	
  divHeight = 0;
	mainHeight = 0;
	contentHeight = 0;

  if(leftcol.offsetHeight){
    divHeight = leftcol.offsetHeight;
		mainHeight = maincol.offsetHeight;
		contentHeight = content.offsetHeight;
  } else if(leftcol.style.pixelHeight){
    divHeight = leftcol.style.pixelHeight;
    mainHeight = maincol.style.pixelHeight;
    contentHeight = content.style.pixelHeight;
  }
	
  if (divHeight > contentHeight){
		mainHeight += divHeight - contentHeight;
		maincol.style.height=mainHeight+'px';
	} else if (divHeight < contentHeight){
		leftcol.style.height = contentHeight+'px';
		mainHeight = contentHeight - divHeight;
		block.style.position = 'relative';
		block.style.top = mainHeight+'px';
	}
}
;