// javascript global variables and functions:

// on submit
function doSubmit(intFirstQuestion)
{
	var objForm = document.frm;
	var objCurrent, intValue, intNumberOfQuestion;
	var intNumberOfQuestions = 4;	
	
	for(var i=0;i<intNumberOfQuestions;i++)
	{			
		intNumberOfQuestion = i + intFirstQuestion;
		eval("objCurrent = objForm.radQuestion" + intNumberOfQuestion);
		intValue = getRadioValue(objCurrent);
		if(intValue == -10000)
		{
			alert("Please, select your answer for question #" + intNumberOfQuestion + ".");			
			return false;
		}
	}
	return true;		
}


// do nothing
function doNothing()
{		
}	

// get a radio button value
function getRadioValue(objRadio)
{	
	var i;
	var vValue = -10000; // a random value
	if(objRadio.length)
	{	
		for(i=0;i<objRadio.length;i++)
		{
			if(objRadio[i].checked)
			{
				vValue = objRadio[i].value;
				break;
			}
		}
	}
	else
	{
		if(objRadio.checked)
		{
			vValue = objRadio.value;
		}	
	}
	
	return vValue;
}

// activate a radiobutton label
function doClickRadioLabel(objRadio)
{
	objRadio.checked = true;
}