function BodyOnLoad()
{
	SetMaxHeightAllChildren('blok_2');
	SetMaxHeightAllChildren('blok_3');
}
function SetMaxHeightAllChildren(id)
{
	var objParent=$D(id);
	if(objParent)
	{
		var child=objParent.childNodes;
		var wys=GetHeight(objParent);
		for(var i=0; i<child.length; ++i)
		{
			child[i].style.height=wys+'px';
		}		
	}
}

if(typeof GetHeight !='function')
GetHeight=function(obj) 
{
	obj = $D(obj);
	if(!$D(obj).clientHeight) $D(obj).style.zoom = "1.0";
	return $D(obj).clientHeight;
}

if(typeof $D !='function')
$D = function(obj) {
	return (typeof obj == "string") ? document.getElementById(obj) : obj;
}