function SetCenterColHeight(e) {
		var oLeft = he("_left_");
        var oCenter = he("center");
        var oRight = he("_right_");
        var oContent = he("_content_");

        if(oLeft && oCenter && oRight && oContent) {
        	var n_lh = getElementPosition(oLeft).height;
        	var n_ch = getElementPosition(oCenter).height;
        	var n_cnth = getElementPosition(oContent).height;
        	var n_rh = getElementPosition(oRight).height;

        	var n_ml = n_lh > n_rh ? n_lh : n_rh;
        	if(n_cnth > n_ml) {
            	oContent.style.height = (n_ml - (n_ch-n_cnth) + 16) + "px";
        	}
        }
	}

	addEventHandler(window, "load", SetCenterColHeight);
	addEventHandler(window, "resize", SetCenterColHeight);