function sendEmail(form){
	valid = true;

	if ( document.sendemail.Name.value == "" || document.sendemail.Email.value == "" || document.sendemail.Comments.value == "")
	{
	  alert ( "Please fill in all required fields" );
	  valid = false;
	}
	else 
	{
		var emailID = document.sendemail.Email
	
		if ((emailID.value==null)||(emailID.value==""))
		{
			alert("Invalid email address");
			emailID.focus();
			return false;
		}
		
		if (echeck(emailID.value)==false){
			emailID.focus();
			return false;
		}
		return true;
	}
    return valid;		
}

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 email address - please try again")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid email address - please try again")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid email address - please try again")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid email address - please try again")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid email address - please try again")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid email address - please try again")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid email address - please try again")
		    return false
		 }

 		 return true					
	}