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 tailleFonte(classe, taille) { 
	cibles = getElementsByClass(classe); 
	for (i = 0; i < cibles.length; i++) { 
		
		cibles[i].style.fontSize = taille; 
	} 
	document.getElementById("THEMASTERSTYLE").style.height =document.getElementById("contenu").offsetHeight+'px';
}