function toggle_cart(id1,id2,string1,string2) 
{
	var e = document.getElementById(id1);
	var c = document.getElementById(id2);
	if(e.style.display == 'none'){
		e.style.display = 'block';
		c.innerHTML = string1;}
	else{
		e.style.display = 'none';
		c.innerHTML = string2;}
}