function getElem(elemId) {
	var elem = null;
	
	if ( document.getElementById )	
		elem = document.getElementById(elemId);  
		
	if ((elem == null) && (document.getElementsByName))
		elem = document.getElementsByName(elemId)[0];
	
	if ((elem == null) && (document.all))
		elem = document.all[elemId];  
	
	if ((elem == null) && ( document.layers )) 	
		elem = document.layers[elemId];

	return elem;
}