var
	classe_des_images_reactives = 'bouton',
	suffixe_des_images_reactives = '_hover'
;


var W3CDOM=(document.createElement&&document.getElementsByTagName);var mouseOvers=new Array();var mouseOuts=new Array();window.onload=init;function init(){if(!W3CDOM)return;var imgs=getElementsByClassName(classe_des_images_reactives);for(var i=0;i<imgs.length;i++){imgs[i].onmouseover=mouseGoesOver;imgs[i].onmouseout=mouseGoesOut;var suffix=imgs[i].src.substring(imgs[i].src.lastIndexOf('.'));mouseOuts[i]=new Image();mouseOuts[i].src=imgs[i].src;mouseOvers[i]=new Image();mouseOvers[i].src=imgs[i].src.substring(0,imgs[i].src.lastIndexOf('.'))+suffixe_des_images_reactives+suffix;imgs[i].number=i}}function mouseGoesOver(){this.src=mouseOvers[this.number].src}function mouseGoesOut(){this.src=mouseOuts[this.number].src}