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("Invalid E-mail")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail")
		    return false
		 }

 		 return true					
	}

function ValidateForm(){
	var org = document.emailform.organization
	var fname = document.emailform.firstname
	var lname = document.emailform.lastname
	var emailID = document.emailform.email
	var phonenumber = document.emailform.phone
	
	if ((org.value == null) || (org.value == "")) {
		alert("Please enter your organization")
		org.focus()
		return false
	}
	
	if ((fname.value == null) || (fname.value == "")) {
		alert("Please enter your first name")
		fname.focus()
		return false
	}
	
	if ((lname.value == null) || (lname.value == "")) {
		alert("Please enter your last name")
		lname.focus()
		return false
	}	
	
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please enter your email")
		emailID.focus()
		return false
	}
	
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}

	if ((phonenumber.value == null) || (phonenumber.value == "")) {
		alert("Please enter your phone number")
		phonenumber.focus()
		return false
	}
	return true
 }