// JavaScript Document
<!--


function getElementsByClass(node,searchClass,tag) {
	
	var classElements = new Array();
	var els = node.getElementsByTagName(tag); // use "*" for all elements
	var elsLen = els.length;
	var pattern = new RegExp("\\b"+searchClass+"\\b");
	for (i = 0, j = 0; i < elsLen; i++) {
	 if ( pattern.test(els[i].className) ) {
	 classElements[j] = els[i];
	 j++;
	 }
	}
	return classElements;
}
function expand(x){
	
	var captionx = getElementsByClass(document,'caption','*');
	captionx = captionx[x];
	
	if ( captionx.style.display == "block" ) {
		captionx.style.display = "none";
	} else {
		captionx.style.display = "block";
	}
	
}
//-->