function pos_footer()
{
	
	var dim_l=document.getElementById('descr_l').offsetHeight;
	var dim_r=document.getElementById('descr_r').offsetHeight;
	
	if(dim_l > dim_r)
		document.getElementById('box').style.height=dim_l+200 +"px";
	else
		document.getElementById('box').style.height=dim_r+200 +"px";
	
	
	//alert(document.getElementById('descr_l').offsetHeight);
	//alert(document.getElementById('descr_r').offsetHeight);
	//alert(document.getElementById('box').offsetHeight);
    //alert('cont_h'+dim_cont+' wind_h'+dim_wind+'footer'+document.getElementById('footer_grap').style.position);
}