function toggleField(val) { 
var o = document.getElementById('other'); 
(val == 'other')? o.style.display = 'inline' : o.style.display = 'none'; 
if (o.style.display == 'inline')	
	o.style.width = '30';
} 

function toggleLayer( whichLayer ){  
	var elem, vis;  
	if( document.getElementById ) 
	// this is the way the standards work    
		elem = document.getElementById( whichLayer );  
	else if( document.all ) 
	// this is the way old msie versions work      
		elem = document.all[whichLayer];  
	else if( document.layers ) 
	// this is the way nn4 works    
		elem = document.layers[whichLayer];  
		vis = elem.style;  
// if the style.display value is blank we try to figure it out here 
 if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)   
  	vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';  
  	vis.display = (vis.display==''||vis.display=='block')?'none':'block';}