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 Address entered, please correct")
		   return false
		}

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

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

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

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

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

 		 return true					
	}
	
function checkform ()
{
    // ** START **
    if ((enquiries.realname.value == "") || (enquiries.realname.value == " " )) {
        alert( "Sorry, we need as much information as possible for this enquiry. Please enter your name." );
        enquiries.realname.focus();
        return false ;
    }
	// ** START **
    if ((enquiries.telephone.value == "") || (enquiries.telephone.value == " " )) {
        alert( "Sorry, we need as much information as possible for this enquiry. Please enter your phone number." );
        enquiries.telephone.focus();
        return false ;
    }
    // ** START **
    if ((enquiries.fax.value == "") || (enquiries.fax.value == " " )) {
        alert( "Sorry, we need as much information as possible for this enquiry. Please enter your fax number." );
        enquiries.fax.focus();
        return false ;
    }

	// ** START **
    if ((enquiries.email.value == "") || (enquiries.email.value == " " )) {
        alert( "Sorry, we need as much information as possible for this enquiry. Please enter your e-mail address." );
        enquiries.email.focus();
        return false ;
    }
    if (echeck(enquiries.email.value)==false){
		enquiries.email.value=""
		enquiries.email.focus()
		return false
	}
	// ** END **
	return true ;
}

function MM_popupMsg(msg) { //v1.0
  alert(msg);
}