function signin(){
	  if (document.getElementById) { // DOM3 = IE5, NS6
         document.getElementById('signlap').style.visibility = 'visible';
     }
     else {
         if (document.layers) { // Netscape 4
             document.signlap.visibility = 'visible';
         }
         else { // IE 4
             document.all.signlap.style.visibility = 'visible';
         }
     }
 	
}

function signoff(){
	 if (document.getElementById) { // DOM3 = IE5, NS6
         document.getElementById('signlap').style.visibility = 'hidden';
     }
     else {
         if (document.layers) { // Netscape 4
             document.signlap.visibility = 'hidden';
         }
         else { // IE 4
             document.all.signlap.style.visibility = 'hidden';
         }
     }

}

function errmsg(){

	 if (document.getElementById) { // DOM3 = IE5, NS6
         document.getElementById('errmsg').style.visibility = 'hidden';
     }
     else {
         if (document.layers) { // Netscape 4
             document.errmsg.visibility = 'hidden';
         }
         else { // IE 4
             document.all.errmsg.style.visibility = 'hidden';
         }
     }
}