var rep=false;
			var mil=0;
			var sec=0;
			function chrono(){
				//if (rep){
					if(sec>=45){
						clearTimeout(compte);
						//document.frm.txt.value="  "+sec+" "+mil+"00";
						document.getElementById("source").innerHTML="  "+sec+" "+mil+"00";
						rep=false }
					else{
								mil=mil+100;
								if(mil>900){sec++,mil=0}
							
								//document.frm.txt.value="  "+sec+" "+mil;
								document.getElementById("source").innerHTML="  "+sec+" "+mil;
								compte=setTimeout('chrono()',1)
								}
								//}	
							
								}
					function start(){
						
									compte=setTimeout('chrono()',1)
									}