// JavaScript Document
 function show_hide(bloc,blocimg)
{
	 elt=document.getElementById(bloc);
	 if (elt.style.display == 'none') {
		   document.getElementById(bloc).style.display='block';
		   document.getElementById(blocimg).src='images/front/plier.gif';
	 }
	 else {
		   document.getElementById(bloc).style.display='none';
		   document.getElementById(blocimg).src='images/front/deplier.gif';
	 }
}