function chkFields(formObj){
flen = formObj.elements.length;
	for (i = 0; i < flen; i++){
		if(formObj.elements[i].id.indexOf('*') > -1){	

			if(formObj.elements[i].name.indexOf('email') > -1){ // specific email field check

				if(formObj.elements[i].value.indexOf('.') == -1 ||formObj.elements[i].value.indexOf('@') == -1 ){
				alert("Please enter a valid return email address");
				formObj.elements[i].value="";
				formObj.elements[i].focus();
				return false;
				}

			}else{

				if ( formObj.elements[i].value == "" ){
				alert("Please provide a value for the " + formObj.elements[i].id + " field.");
				formObj.elements[i].focus();
				return false;
				}

			}
		}
	}
}