function fixColumns(){
	var c1 = document.getElementById("gauche");
	var c2 = document.getElementById("content");
	if (c1 != null && c2!= null){
		if(c1.offsetHeight && c2.offsetHeight){
			maxheight=Math.max(c1.offsetHeight,c2.offsetHeight)+'px';
		}
		c1.style.height = maxheight;
		c2.style.height = maxheight;
	}
}