function Verifier()
{	
	var rep="";
	var ValidChars = "0123456789"; 
	salaire1=document.getElementById("salaire").value;
	for(t=0;t<salaire1.length;t++)
	{
		car=salaire1.substr(t,1);
		if (ValidChars.indexOf(car) == -1)
		{ 
			IsNumber = false; 
		} 
		else
		{
			rep=rep+car;
		}
	}
	document.getElementById("salaire").value=rep;
}

function Calculate()
{
	document.getElementById("cas1").style.display="none";
	document.getElementById("cas2").style.display="none";
	document.getElementById("cas3").style.display="none";
	document.getElementById("cas4").style.display="none";		
	salaire1=document.getElementById("salaire").value;
	pourcen=Math.log(salaire1)*1.5221-13.894;
	don=salaire1*pourcen/100;
	if(don>999)
	{
		rest=Math.round(don-1000*parseInt(don/1000));
		if(rest<100) rest="0"+rest;
		mil=parseInt(don/1000);
		don=mil.toString() + "," + rest.toString();
	}
	else
	{
		don=Math.round(don);
	}
	if(salaire1>15000)
	{
		document.getElementById("valeurpourcentage").innerHTML=Math.round(pourcen*100)/100;
		document.getElementById("valeurdon").innerHTML=don;
	}
	else
	{
		document.getElementById("valeurpourcentage").innerHTML=0;
		document.getElementById("valeurdon").innerHTML=0;
		document.getElementById("cas1").style.display="block";
	}
	if(salaire1>15000 && salaire1<=70000)
	{
		document.getElementById("cas2").style.display="block";
	}
	if(salaire1>70000 && salaire1<120000)
	{
		document.getElementById("cas3").style.display="block";
	}
	if(salaire1>=120000 )
	{
		document.getElementById("cas4").style.display="block";
	}
}

function showAnswer(lyr) {

	//var a = document.getElementById('answer'+lyr)

	//a.style.color = '#D95726'

	for(i=1; i<=7; i++) { 

		var a = document.getElementById('answer'+i)

		a.style.color = '#D95726'

		var b = document.getElementById('arr'+i)

		b.style.display = 'block'

		var c = document.getElementById('msg')

		c.style.display = 'block'

	}

}