function visible(elementId){
	this.element=document.getElementById(elementId);
	this.toggled=true;
	this.init = function(startvalue){
		if(startvalue){this.show();}
		else{this.hide();}
	}
	this.hide = function(){
		this.element.style.visibility="hidden";
		this.element.style.display="none";
		this.toggled=false;
	}
	this.show = function(){
		this.element.style.visibility="visible";
		this.element.style.display="block";
		this.toggled=true;
	}
	this.toggle = function(){
		if(this.toggled){this.hide();}
		else{this.show();}
	}
}

function picswitch(elementid,pic1,pic2){
	this.element=document.getElementById(elementid);
	this.pic1=pic1;
	this.pic2=pic2;
	this.toggled=true;
	this.toggle = function(){
		if(this.toggled){this.element.src=pic1;this.toggled=false;}
		else{this.element.src=pic2;this.toggled=true;}
	}
}