function VideChamps(def, id)
					{
					if(document.getElementById(id).value == def)
						{
						document.getElementById(id).value = '';
						}
					}
					
					function RemplaceChamps(def, id)
					{
					if(document.getElementById(id).value== '')
						{
						document.getElementById(id).value = def;
						}
					}

function gradient(){

  //prepend span tag to H1
  $("h2").prepend("<span></span>");

}