var openResidentHTML = '<table cellpadding=0 cellspacing=0 border=0><tr><td bgcolor=\"#5cb7d1\"><a href=\"javascript:show();\"><img src=\"img/btn_resident.gif\" alt=\"\" border=\"0\"></a></td></tr></table>';

var closeResidentHTML = '<table cellpadding=0 cellspacing=0 border=0><tr><td bgcolor=\"#5cb7d1\"><a href=\"javascript:hide();\"><img src=\"img/btn_resident_2.gif\" alt=\"\" border=\"0\"></a></td></tr></table>';


function show() {
   obj=document.getElementById('rescenter');
   obj.style.visibility = "visible";

   	theButton = document.getElementById('resbtn');
   	theButton.innerHTML = closeResidentHTML;

}

function hide() {
   obj=document.getElementById('rescenter');
   obj.style.visibility = "hidden";

   	theButton = document.getElementById('resbtn');
   	theButton.innerHTML = openResidentHTML;
}