// Création : Dustin Diaz
		//Site : http://www.dustindiaz.com/getelementsbyclass
		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; 
		} 


		// Xavier Borderie
		function tailleFonte(classe, taille) { 
		cibles = getElementsByClass(classe); 
		for (i = 0; i < cibles.length; i++) { 
				cibles[i].style.fontSize = taille; 
				} 
			}