function $() {
	var elements = new Array();
	for (var i=0;i<arguments.length;i++) {
		var element = arguments[i];
		if (typeof element == 'string') element = document.getElementById(element);
		if (arguments.length == 1) return element;
		elements.push(element);
	}
	return elements;
}

var BoxHeights = {
	maxh: 0,
	extra : 0,
	boxes: Array(),
	num: 0,
	op_test: false,
	equalise: function() {
		this.num = arguments.length;
		this.extra = 0;
		for (var i=0;i<this.num;i++) if (!$(arguments[i])) return;
		this.boxes = arguments;
		this.maxheight();
		for (var i=0;i<this.num;i++) {
			if (arguments[i] == "Oikea_reuna") this.extra = 15;
			$(arguments[i]).style.height = (this.maxh+this.extra)+"px";
		}
	},
	maxheight: function() {
		var heights = new Array();
		for (var i=0;i<this.num;i++) {
			if (navigator.userAgent.toLowerCase().indexOf('opera') == -1) {
				heights.push($(this.boxes[i]).scrollHeight);
			} else {
				heights.push($(this.boxes[i]).offsetHeight);
			}
		}
		heights.sort(this.sortNumeric);
		this.maxh = heights[this.num-1];
	},
	sortNumeric: function(f,s) {
		return f-s;
	}
}


   function init() {
       // quit if this function has already been called
       if (arguments.callee.done) return;

       // flag this function so we don't do the same thing twice
       arguments.callee.done = true;

		BoxHeights.equalise('Vasen_reuna','Container','Oikea_reuna');
   };

   /* for Mozilla */
   if (document.addEventListener) {
       document.addEventListener("DOMContentLoaded", init, false);
   }

	// for Internet Explorer (using conditional comments)
	/*@cc_on @*/
	/*@if (@_win32)
	document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>");
	var script = document.getElementById("__ie_onload");
	script.onreadystatechange = function() {
		if (this.readyState == "complete") {
			init(); // call the onload handler
		}
	};
	/*@end @*/

   /* for other browsers */
   window.onload = init;