function cap(text){
	document.getElementById("caption").innerHTML = text;
}

function stay(n){
	if(n !=st){
		if (image = document.getElementById(st)){
			oldsrc = image.src;
			newsrc = oldsrc.substring(0,oldsrc.length-5) + '.jpg';
			image.src = newsrc;
		}
	
		st = n;
	}
}

function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

function showMenu(){
	var obj = document.getElementById('ssn');
	var posX = obj.offsetLeft;
	var posY = obj.offsetTop;
	
	var obj2 = document.getElementById('menussn');
	obj2.style.left = posX;
	obj2.style.top = posY;
}

var st;

function change(n,s){
	if(n != st){
		image = document.getElementById(n);
		image.src = s;
	}
}