function repStr(str,txt,by) {
 var strLength=str.length,txtLength=txt.length;
 if((strLength==0) || (txtLength==0))return str;
 var i=str.indexOf(txt);
 if((!i) && (txt!=str.substr(0,txtLength)))return str;
 if(i==-1)return str;
 var newstr=str.substr(0,i) + by;
 if(i+txtLength < strLength){newstr+=repStr(str.substring(i+txtLength,strLength),txt,by)}
 return newstr;
}

function hideElements(){
 var els = getElementsByClassName(document, "*", "effect_hide");
 for(a=0; a < els.length; a++){
  els[a].style.display = "none";
 }
}

function getElementsByClassName(oElm, strTagName, strClassName){
	var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	strClassName = strClassName.replace(/\-/g, "\\-");
	var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
	var oElement;
	for(var i=0; i<arrElements.length; i++){
		oElement = arrElements[i];
		if(oRegExp.test(oElement.className)){
			arrReturnElements.push(oElement);
		}
	}
	return (arrReturnElements)
}

function getElementByClassName(oElm, strTagName, strClassName){
 var els = oElm.getElementsByTagName(strTagName);
 var el = false;
 for(a=0; a < els.length; a++){
  if(els[a].className == strClassName){
   el = els[a];
  }
 }
 if(el){
  return el;
 }else{
  return false;
 }
}

function sleeper(duration) {
	d = new Date().getTime() + duration;
	while(new Date().getTime() < d);
}


function stripSlashes(str){
 return str.replace(/\\/g, '');
}

var imgbank = new Array();

function viewImage(n, text){
 n -= 1;
 document.getElementById('mainentryimage').src = imgbank[n].src;
 if(document.getElementById('imagedescription')){
  document.getElementById('imagedescription').innerHTML = stripSlashes(text);
 }
 if(document.getElementById('originalimage')){
  document.getElementById('originalimage').href = repStr(imgbank[n].src,"images/","images/original/");
 }
 return false;
}

function preloadImagebank(){
 if(el = getElementByClassName(document, "DIV", "imagebank")){
  var imgs = el.getElementsByTagName("IMG");
  for(i = 0; i < imgs.length; i++){
   imgbank[i] = new Image();
   imgbank[i].src = repStr(imgs[i].src,"thumbs/","");
  }
 }else{
 }
}