/*
** check survey answers and warn survant if he left any empty field
*/

function kontrol_anket21 (objForm){
	if (objForm){
		var objQ01       = objForm.q01.value.Trim();
		var objQ02       = objForm.q02.value.Trim();
		var objQ03       = objForm.q03.value.Trim();
		var objQ04       = objForm.q04.value.Trim();
		
		var objQ06       = objForm.q06;
		var objQ07       = objForm.q07;
		var objQ08       = objForm.q08.value.Trim();
		var objQ09       = objForm.q09;
		var objQ10       = objForm.q10.value.Trim();
		var objQ11       = objForm.q11;
		var objQ12       = objForm.q12;
		var objQ13       = objForm.q13;
		var objQ14       = objForm.q14;
		var objQ15       = objForm.q15;
		var objQ16       = objForm.q16;
		var objQ17       = objForm.q17.value.Trim();

		var strErrMsg    = '';
		
		if (objQ01 == ''){
			strErrMsg += '   \n* \Please enter "name & surname"';
		}
		
		if (objQ02 == ''){
			strErrMsg += '   \n* \Please enter "living city & country"';
		}
		
		if (objQ03 == ''){
			strErrMsg += '   \n* \Please enter "e-mail address"';
		}
		
		if (objQ04 == ''){
			strErrMsg += '   \n* \Please enter "year of birth"';
		}

		if (is_RBF_Filled(objQ06) == false) {
			strErrMsg += '   \n* \Please answer question 1"';	
	  	}
		
		if (is_RBF_Filled(objQ07) == false) {
      			strErrMsg += '   \n* \Please answer question 2"';
		}

		if (is_RBF_Filled(objQ09) == false) {
      			strErrMsg += '   \n* \Please answer question 3"';	
		}
		
		if (is_RBF_Filled(objQ11) == false) {
		strErrMsg += '   \n* \Please answer question 4"';	
		}
		
		if (is_RBF_Filled(objQ12) == false) {
		strErrMsg += '   \n* \Please answer question 5"';	
		}
		
		if (is_RBF_Filled(objQ13) == false) {
      			strErrMsg += '   \n* \Please answer question 6"';
	  	}
		if (is_RBF_Filled(objQ14) == false) {
		strErrMsg += '   \n* \Please answer question 7"';	
		}
		if (is_RBF_Filled(objQ15) == false) {
		strErrMsg += '   \n* \Please answer question 8"';	
		}
		if (is_RBF_Filled(objQ16) == false) {
		strErrMsg += '   \n* \Please answer question 9"';	
		}
		if (objQ17 == ''){
			strErrMsg += '   \n* \Please answer question 10"';
		}

		if (strErrMsg.Trim().length > 0){
			show_error_msg_tr(strErrMsg);
		} else{
			objForm.submit();		
		}
	}
}

/*
**
** check whether radio button field is filled or not
**
*/

function is_RBF_Filled(objRadioButton){
	if (objRadioButton){
		var n_SelectedAnswers = 0;

		for (var i = 0; i < objRadioButton.length; i++){
			if (objRadioButton[i].checked == true){
				n_SelectedAnswers++;
			}
		}

		if (n_SelectedAnswers ==1 ){
			return(true);
		}else{
			return(false);	
		}
	}else{
		return(false);
	}
}