var defil;var scrl;function defilPage(option){if(navigator.appName=="Microsoft Internet Explorer"){var scroll=document.documentElement.scrollTop;var hght=document.documentElement.clientHeight}else{var scroll=window.pageYOffset;var hght=window.innerHeight}if(option=="haut"){scrl=-50;var defil=setInterval('defilPage()',250)}if(option=="bas"){scrl=50;var defil=setInterval('defilPage()',250)}if(option=="arret"){scrl=0;clearInterval(defil)}if(option=="directHaut"){for(var i=0;i<scroll;i++){scrollBy(0,-50)}}if(option=="directBas"){var scrollBas=document.body.offsetHeight-hght;for(var i=0;i<scrollBas;i++){scrollBy(0,50)}}if(scrl!=0){scrollBy(0,scrl)}}