function getPosElemento(elemID){
    var offsetTrail = document.getElementById(elemID);
    var offsetLeft = 0;
    var offsetTop = 0;
    while (offsetTrail) {
        offsetLeft += offsetTrail.offsetLeft;
        offsetTop += offsetTrail.offsetTop;
        offsetTrail = offsetTrail.offsetParent;
    }
    if (navigator.userAgent.indexOf("Mac") != -1 && 
        typeof document.body.leftMargin != "undefined") {
        offsetLeft += document.body.leftMargin;
        offsetTop += document.body.topMargin;
    }
    return {left:offsetLeft, top:offsetTop};
}

function fecha(){
	$("#div_slide").slideToggle("slow");
}
	
function abre(){
	url = espaco + 'phpAjax/slideSacola.php';
	$.post(url, {
				}, 

				function (response){ 
					$('#div_slide').html(response);
				} 
			);

	
	var esq = getPosElemento("sacola").left;
	var top = getPosElemento("sacola").top;
	
	document.getElementById('div_slide').style.top = top + 25;
	document.getElementById('div_slide').style.left = esq ;
	
	$("#div_slide").slideToggle("slow");
}