function abre_pop( url, titulo, pop_size_w, pop_size_h, hasScroll ) {
	var posicaoX = screen.width - pop_size_w ;
	var posicaoY = screen.height - pop_size_h ;
	if ( posicaoX != 0 ) {
		posicaoX = Math.round( posicaoX / 2 ) ;
		posicaoY = Math.round( posicaoY / 2 ) ;
	}
	var pop = window.open( url, titulo, "scrollbars="+hasScroll+",width="+pop_size_w+",height="+pop_size_h+",left="+posicaoX+",top="+posicaoY );	
} 

function alterDisplay( oElem, preHTML, id) {
	
	var nome = oElem.id;
	
	if ( oElem.style.display == "none" ) {
		oElem.style.display = "block" ;
	}
	else {
		oElem.style.display = "none" ;
	}

	if (preHTML != "")
		eval(preHTML + nome).innerHTML = getHTML(nome, id, preHTML, oElem.style.display);

}


function getHTML( strNome, id, preHTML, strType ) {
		
	var strString = "";
	
	switch (id) {
		case 1:
			if (strType == 'none') 
				strString = "<img src='../comum/imagens/but_abrir_mapa.gif' width='7' height='7' border='0'>";
			else
				strString = "<img src='../comum/imagens/but_fechar_mapa.gif' width='7' height='7' border='0'>";

			return "<a href='javascript: alterDisplay( " + strNome + ", \"" + preHTML + "\", 1 );'>" + strString + "</a>";

			break;
		

	}

}

function increaseTextSize( textDiv ) {
	
	var text = document.getElementById( textDiv );
	
	if( text.style.fontSize == '' )
		text.style.fontSize = '13px';
	else if( text.style.fontSize == '13px' )
		text.style.fontSize = '15px';
	else if( text.style.fontSize == '15px' )
		text.style.fontSize = '17px';
	else if( text.style.fontSize == '17px' )
		text.style.fontSize = '20px';
	
}

function decreaseTextSize( textDiv ) {
	
	var text = document.getElementById( textDiv );
	
	if( text.style.fontSize == '20px' )
		text.style.fontSize = '17px';
	else if( text.style.fontSize == '17px' )
		text.style.fontSize = '15px';
	else if( text.style.fontSize == '15px' )
		text.style.fontSize = '13px';
	else if( text.style.fontSize == '13px' )
		text.style.fontSize = '';
}