var currentDiv = null;

function doSlideIn(aDiv){
	document.getElementById(aDiv).style.visibility = 'visible';
	document.getElementById(aDiv).style.height = 'auto';
	document.getElementById(aDiv).style.display = 'block';
	currentDiv = aDiv;
}

function doSlideOut(aDiv){
	document.getElementById(aDiv).style.visibility = 'hidden';
	document.getElementById(aDiv).style.height = '0';
	document.getElementById(aDiv).style.display = 'none';
	currentDiv = aDiv;
}

function doClear(aDiv) {
	document.getElementById(aDiv).style.visibility = 'hidden';
	document.getElementById(aDiv).style.height = '0';
	document.getElementById(aDiv).style.display = 'none';
}

function doAppear(aDiv, validate) {
	if (document.getElementById(validate).value=="" || document.getElementById(validate).value==0 ){
		document.getElementById(aDiv+"_err").style.display = 'block';
		document.getElementById(aDiv).style.display = 'none';
		return;
	}
	document.getElementById(aDiv+"_err").style.display = 'none';
	document.getElementById(aDiv).style.display = 'block';
}

function doSlide(aDiv){
	if (document.getElementById(aDiv).style.visibility == 'hidden' || document.getElementById(aDiv).style.display == 'none'){
		document.getElementById(aDiv).style.visibility = 'visible';
		document.getElementById(aDiv).style.height = 'auto';
		document.getElementById(aDiv).style.display = 'block';
	} else {
		document.getElementById(aDiv).style.visibility = 'hidden';
		document.getElementById(aDiv).style.height = '0';
		document.getElementById(aDiv).style.display = 'none';
	}
	currentDiv = aDiv;
}


var up = new Image();
up.src = "img/site_box_plus.gif";
var down = new Image();
down.src = "img/site_box_minus.gif";

function changeArrow(arrow){
	if (document.getElementById(arrow).src == up.src){
		document.getElementById(arrow).src = down.src;
	} else {
		document.getElementById(arrow).src = up.src;
	}
}