function oninit1(){
  blocSejoursPassions();
}

function blocSejoursPassions(){
  setScrollHorizontalOnDiv('div_contenuSejoursPassions','ul_themesSejoursPassions',{nextButton:"div_btnThemesSuiv",prevButton:"div_btnThemesPrec",scrollRetourAuto:true});
  //$("ul_themesSejoursPassions").style.left="0";
  //var nombre= Math.floor(Math.random() * 14)+1; 
  tabLis = $("ul_themesSejoursPassions").immediateDescendants();
  var nbTot=tabLis.length;
  var nb= (Math.floor(Math.random() * nbTot))*-1;  
  var position = nb*308;
  $("ul_themesSejoursPassions").style.left=position+"px";
}