// JavaScript Document
function showhide(e) {
	el = document.getElementById(e);
	el.style.display = el.style.display  == "none" ? "block" : "none";
}

function hideAll(e, lngt) {
	for (var i=1;i<=lngt;i=i+1) {
		el = document.getElementById(e+'-'+i);
		el.style.display = "none";
	}
}

function centrera(e) {
	var el = document.getElementById(e);
	var objWidth = document.getElementById(e).offsetWidth
	var screenWidth = document.body.clientWidth;
	var posLeft = Math.round(eval(eval(screenWidth/2))-(eval(objWidth/2)));
	el.style.left = posLeft +'px';
}