function changeBackground() {
  var style = this.style;

  if(style && ('string' == typeof style.backgroundImage)) {
    style.backgroundImage = (-1 != style.backgroundImage.indexOf('minus-bg'))
                          ? 'url(/plus-bg.gif)'
                          : 'url(/minus-bg.gif)';
  }
}



function setPhoto(which, number) {
	//alert("ac debug " + number);
	var photobox = document.getElementById('picture-box') ;
	//var sstr = document.getElementById('subsector') ;
	//removeAllOptions(selectbox) ;
	//var count = 0 ;
	//for ( var row in subindustries) {
	//	if (subindustries[row]['mainid'] == ind.value) {
	//		if (subindustries[row]['name'] != 'None') {
	//			addOption(selectbox, subindustries[row]['name'], subindustries[row]['id']) ;
	//			count++ ;
	//		}
	//	}
	//} 
	//if (count == 0) {
		
	//	sstr.style.display = "none" ;
		//sstr.className="sub-off";
	//} else {
		
		//alert("ac debug 02");
		//sstr.style.display = "block" ;
		//sstr.className="sub-on";
	//}
	//alert("url('img/furniture/"+which+"/"+number+".jpg')");
	//alert ("url('img/furniture/"+which+"/"+number+".jpg')");
	photobox.style.backgroundImage = "url('http://www.ninetonine.es/img/furniture/"+which+"/"+number+".jpg')";
	//photobox.style.backgroundImage = "url('http://www.ninetonine.es/img/furniture/cots/zebra_01/02.jpg')";
}

function setPhotoAlt(which, number) {
	var photobox = document.getElementById('picture-box') ;	
	photobox.style.backgroundImage = "url('http://www.ninetonine.es/img/"+which+"/"+number+".jpg')";
}