function newWindow(url, width, height, left)
{
	var str=  "";
	if( null != width && width > 0 )
		str = str + 'width=' + width + ',';
	if( null != height && height > 0 )
		str = str +  'height=' + height + ',';
	str = str + 'top=0';
	if( null != left && left > 0 )
		str = str +',left='+left;
	else
		str = str +',left=0';
		
	str = str +',resizable=yes,scrollbars=yes,toolbar=yes';
	
	window.open(url, '_blank', str, false);
}

function toggleShow( elName )
{	
	var el = document.getElementById(elName);
	if(el.style.display == 'none')
		el.style.display = 'block';
	else el.style.display = 'none';
}