function toggleReadOnly(){
		if(document.getElementById('accom_pref1').checked){
			document.getElementById('shareName1').style.display = 'none';
			document.getElementById('shareEmail1').style.display = 'none';
		}else if(document.getElementById('accom_pref3').checked){
			document.getElementById('shareName1').style.display = 'none';
			document.getElementById('shareEmail1').style.display = 'none';			
		}else{
			document.getElementById('shareName1').style.display = 'block';
			document.getElementById('shareEmail1').style.display = 'block';
		}
	}

function updateValue(e){
		
		if( e.id == 'cost_ev1'){
			document.getElementById('tot').value = 7350;
		}

		if( e.id == 'cost_ev2'){
			document.getElementById('tot').value = 2850;
		}
}