function dtp(obj, id) {

	document.getElementById(id).style.borderBottom = 'dotted 1px #0000ff';
	document.getElementById(id).style.backgroundColor = '#ffffbb';
	obj.style.borderBottom = 'dotted 1px #0000ff';
	obj.style.backgroundColor = '#ffffbb';

}

function etp(obj, id) {
	
	document.getElementById(id).style.textDecoration = '';
	document.getElementById(id).style.borderBottom = '';
	document.getElementById(id).style.backgroundColor = '';
	obj.style.textDecoration = '';
	obj.style.borderBottom = '';
	obj.style.backgroundColor = '';

}