//created by jc 12/09/08
function showHide(id) {
	var columnId = new Array();
	columnId[0] = 'welcome';
	columnId[1] = 'recipes';
	columnId[2] = 'blog';
	columnId[3] = 'guide';
	
	for (i=0; i<columnId.length; i++) {
        if(document.getElementById(columnId[i]+"_button")!=null){
                document.getElementById(columnId[i]).style.display = 'none';
            document.getElementById(columnId[i]+"_button").className = '';
        }
	}

	document.getElementById(id).style.display = 'block';
	document.getElementById(id+"_button").className = 'selected';
}