function isIn(myArray,myString) {
	for (var i=0; i<myArray.length; i++) if (myString == myArray[i]) return true;
	return false;
}


function insertHTMLbyClass(className, preCode, postCode) {
	for (var i=0; i<document.all.length; i++) {
		myTag = document.all[i];
		
		if (isIn(myTag.className.split(" "), className)) myTag.innerHTML = preCode + myTag.innerHTML + postCode;
	}
}