var imgPlus = new Image();
imgPlus.src = "images/plus.png";
var imgMinus = new Image();
imgMinus.src = "images/minus.png"

function toggleSection(id, hasImage)
{
	var objImage;
	var objSection = document.getElementById(id).style;
	if(hasImage)
		objImage = document.getElementById(id + "_img");
	
	if(objSection.display == "block")
	{
		objSection.display = "none";
		if(hasImage)
			objImage.src = imgPlus.src;
	}
	else
	{
		objSection.display = "block";
		if(hasImage)
			objImage.src = imgMinus.src;
	}
}