// JavaScript Document

function correct_layout() {
	  if(document.getElementById('content').offsetHeight) {
         var div_heights = new Array(
									 document.getElementById('content').offsetHeight,
									 document.getElementById('navi').offsetHeight,
									 document.getElementById('main').offsetHeight

);
		 div_heights = div_heights.reverse(div_heights.sort(num_sort));
		 var style_height = div_heights[0] + "px";
		 document.getElementById('content').style.height = style_height;
		 document.getElementById('navi').style.height = style_height;
		 document.getElementById('main').style.height = style_height;

	  }
}
function num_sort(a,b) {
	   return a-b;
}