function isDate(dd,mm,yyyy) {
   var d = new Date(mm + "/" + dd + "/" + yyyy);
   return d.getMonth() + 1 == mm && d.getDate() == dd && d.getFullYear() == yyyy;
}

function ucFirst(txt) {
    return txt.substr(0,1).toUpperCase() + txt.substr(1,txt.length);
}


function createFrame(src,width,height){
document.write('<iframe name="iframe" src='+src+' noresize=noresize frameborder=0 border=0 marginwidth=0 marginheight=0 allowtransparency="true" cellspacing=0 scrolling=no width='+width+' height='+height+'></iframe>');
}


function windowOnLoad(fct) {
if (top.addEventListener) {top.addEventListener('load',fct,false);} else if (top.attachEvent) {top.attachEvent('onload',fct);}
}


function find(string,text)
{if (text.indexOf(string)==-1){return false} else {return true}} 



function nextSibling(node){
  realNextSibling=node.nextSibling;
  while(realNextSibling.nodeType!=1){
    realNextSibling = realNextSibling.nextSibling;
  }
  return realNextSibling;
}


function prevSibling(node){
  realPrevSibling=node.previousSibling;
  while(realPrevSibling.nodeType!=1){
    realPrevSibling = realPrevSibling.previousSibling;
  }
  return realNextSibling;
}

var getElementsByClassName = function (className, tag, elm){
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for(var i=0, il=elements.length; i<il; i+=1){
				current = elements[i];
				if(!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for(var j=0, jl=classes.length; j<jl; j+=1){
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for(var k=0, kl=classes.length; k<kl; k+=1){
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for(var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};