function formValidation(formID){
	var reason = "";
	var elem = document.getElementById(formID).elements;
	
	for(var i = 0; i < elem.length; i++){
		if (elem[i].className=='required'){
				if (elem[i].type=='radio'){
					if(getCheckedValue(document.getElementById(formID).elements[elem[i].name])==""){
						reason +=" The required field has not been filled in : "+elem[i].name+" \n"; 
						elem[i].style.backgroundColor = 'Yellow';elem[i].style.borderColor= 'Red';
					}else{elem[i].style.backgroundColor = 'White';elem[i].style.borderColor= 'White';}
				}else{
			  		reason += validateEmpty(elem[i]);
				}
			}
		}
  	if (reason != "") {
		//alert("Some fields need correction:\n" + reason);
		return false;
		}
	return true;
	}


function validateEmpty(fld) {
    var error = "";
    if (fld.value.length == 0) {
        fld.style.background = 'Yellow'; 
		fld.style.borderColor= 'Red';
        error =" The required field has not been filled in. "+fld.name+" \n"
    } else {
        fld.style.background = 'White';
		fld.style.borderColor= 'Black';
    }
    return error;  
}

function getCheckedValue(radioObj) {
	for(var i = 0; i < radioObj.length; i++) {
		if(radioObj[i].checked==true) {
			return radioObj[i].value;
		}
	}
	return "";
}