function ValidateForm(){
	var requiredChoirNameID=document.form1.requiredChoirName
	var requiredFirstNameID=document.form1.requiredFirstName
	var requiredEmailID=document.form1.requiredEmail
	var requiredTelephoneNoID=document.form1.requiredTelephoneNo
	var requiredWhichFestivalID=document.form1.requiredWhichFestival
		
	if ((requiredChoirNameID.value==null)||(requiredChoirNameID.value=="")){
		alert("Please enter choir name")
		requiredChoirNameID.focus()
		return false
	}
		
	 if ((requiredFirstNameID.value==null)||(requiredFirstNameID.value=="")){
	 alert("Please enter your name")
	 requiredFirstNameID.focus()
	 return false
	 }	
	 
	 if (echeck(requiredEmailID.value)==false){
		requiredEmailID.value=""
		requiredEmailID.focus()
		return false
	}
	
	if ((requiredTelephoneNoID.value==null)||(requiredTelephoneNoID.value=="")){
	 alert("Please enter your telephone")
	 requiredTelephoneNoID.focus()
	 return false
	 }	
	 
	 if ((requiredWhichFestivalID.value==null)||(requiredWhichFestivalID.value=="")){
	 alert("Please enter the festival you are interested in")
	 requiredWhichFestivalID.focus()
	 return false
	 }	
	 
	return true
 }

function echeck2(str) {

		   alert("Invalid E-mail Address")
		   return false
		}

function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)

		if (str.indexOf(at)==-1){
		   alert("Please enter a valid email address")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Please enter a valid email address")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Please enter a valid email address")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Please enter a valid email address")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Please enter a valid email address")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Please enter a valid email address")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Please enter a valid email address")
		    return false
		 }
	 
	  return true			 				
	}