var divID = "lightbox-1";

function closelightbox(name){
		var divLength = 0;
    for (var j = 0; j < document.getElementsByTagName("div").length; j++) {
        if (document.getElementsByTagName("div")[j].id.indexOf("lightbox-") == 0) {
        	if(divLength < parseInt(document.getElementsByTagName("div")[j].id.substring(9))) {
        		divLength = parseInt(document.getElementsByTagName("div")[j].id.substring(9));
        	}
        }
    }
    
  	for (var i = 1; i <= divLength; i++) {
        divID = "lightbox-" + i;
       	if(document.getElementById(divID) != null) {
	        document.getElementById(divID).style.display = "none";
	      }
    }
}
function showlightbox(name) {
  closelightbox(name);
  document.getElementById(name).style.display = "block";
}