window.onload = function(){
	switchHeader();
	
	if (document.getElementsByTagName){
		document.getElementsByTagName('frame')['content'].onload = switchHeader;
	}
};

function switchHeader(){
	if (document.getElementById){
		var content = top.frames['content'];
		var header = top.frames['header'];
		var headerDoc = header.document;
		
		if (headerDoc){
			var pageWrapper = headerDoc.getElementById('pageWrapper');
			var page = headerDoc.getElementById('page');
			
			try	{
				var contentURL = content.location.href;
				
				if (pageWrapper && page){
					if ('default_content.asp' != contentURL.substring(contentURL.lastIndexOf('/') + 1, contentURL.length)){
						setHeaderStyle('sub');
					}else{
						setHeaderStyle('');
					}
				}
			}
			catch (e){
				setHeaderStyle('sub');
			}
		}
	}
	
	function setHeaderStyle(className){
		pageWrapper.className = className;
		page.className = className;
	}
}