function hasardFromTaux(tabElements){
valHasard = Math.random()*100;
maxElement = 0;
for (idElement in tabElements){
maxElement += tabElements[idElement][1];
if (valHasard<=maxElement)
return tabElements[idElement][0];
}
return false;
}
tabPublications= [["
", 25], ["
", 25], ["
", 25], ["
", 25]];
document.write(hasardFromTaux(tabPublications));