Event.observe(window,'load',start);
	
function start(){

	//CHECK CALENDAR'S DATE
	if ($('searchExt2') != null) 
	{
		new Form.Element.Observer($('DataAl'),0.5,function(el, value){ 
	          confronta_data();
	        } );
	        
		new Form.Element.Observer($('Data'),0.5,function(el, value){ 
	          confronta_data();
	        } );
	}
	
	
	//CHECK CALENDAR'S DATE
	if ($('searchExt') != null) 
	{
		new Form.Element.Observer($('DataAl'),0.5,function(el, value){ 
	          confronta_data();
	        } );
	        
		new Form.Element.Observer($('Data'),0.5,function(el, value){ 
	          confronta_data();
	        } );
	}	

}