function noEntry() {
var themessage = "You are required to complete the following fields: \n";
var i;
for(i=0; i<document.form1.elements.length; i++){
	fldName = document.form1.elements[i].name
	fldName=fldName.slice(3,28)
	fldName = fldName.replace(".", " ")
	fldName = fldName.replace("_", " ")
	if(document.form1.elements[i].value == ""){
   		themessage = themessage + fldName + '\n';
	}	
}
for(i=0; i<document.form1.elements.length; i++){
	if(document.form1.elements[i].name == "txtEmail_address"){
				
		if (!isValidEmail(document.form1.txtEmail_address)){
			if(themessage == "You are required to complete the following fields: \n"){
				themessage="";
			}
		themessage = themessage +'A valid e-mail address is required.\nPlease amend and retry'
		}
	}
}


if(themessage =="You are required to complete the following fields: \n"){
	return true;
}

alert(themessage)
return false;

}





function isValidEmail(strEmail){
 validRegExp = /^(([a-zA-Z0-9\-\._]+)@(([a-zA-Z0-9\-_]+\.)+)([a-z]{2,3})(,(?!$))?)+$/;
 strEmail=document.form1.txtEmail_address.value
    if (strEmail.search(validRegExp) == -1) 
   {
      return false;
    } 
    return true;
}