function changeVisibility1(ldivId, lboolVisibility) {
            document.getElementById(ldivId).visibility = 'true';
        }

        function changeVisibility(id)
        {
	        el = document.getElementById(id);
	        if (el.style.display == 'none')
	        {
		        el.style.display = '';
		        el = document.getElementById(id);
	        } else {
		        el.style.display = 'none';
		        el = document.getElementById(id);
	        }
        }