var J = jQuery.noConflict(); 
window.onload = function() {
	J('#sidebar')[0].style.height = (J('#content_bg')[0].offsetHeight-J('#navi')[0].offsetHeight)+'px';
	J('#blume_stiel')[0].style.height = (J('#sidebar')[0].offsetHeight-J('#blume')[0].offsetHeight-J('#sidebar_content')[0].offsetHeight)+'px';
}