/*
Revision 0220 - Added line in FIB & SVTXT to replace '+' with a space
*/

function reposition(showAnswers){
    
	for (var i=1; i<= Question.index; i++) {
    	if (Question[i].type == "MCMA"){
	    	eval('subform = window.document.'+Question[i].id);
            for (var k=0; k < subform.elements.length; k++){
            	subform.elements[k].checked = false; 
            } // end if checked grab value
        }
    } // end loop thru questions to clear checkboxes

    for (var i=0; i< prev_name.length; i++){
        var found = false;
        for (var j=1; !found && j<= Question.index; j++) {
            var questionRef = Question[j];
            if (questionRef.response_id == prev_name[i]){
                found = true;
                if (questionRef.type == "FIB" && showAnswers){
	        		eval('subform = window.document.'+ questionRef.id);
                    var value = prev_value[i];
                    var index = value.indexOf("=");
                    if ( index > -1 ) { 
                        value = value.replace(/\+/g, "%20"); // replace '+' with %20 (i.e. space)
                        subform.elements[0].value = unescape(value.substr(index+1));
                    }
                }
                else if ((questionRef.type == "TF" || questionRef.type == "MCSA" || questionRef.type == "SVRAT") && showAnswers){
	        		eval('subform = window.document.'+ questionRef.id);
                    var value = prev_value[i];
                    var index = value.indexOf("=");
                    value = value.substr(index+1); // exclude = from value string
                    if ( index > -1 ){ 
                        // If display type is a dropdown list, else assume default radio buttons
                        if (questionRef.display == "dropdown") {
                            var selectRef = subform[questionRef.response_id];
                            
                            for (var k=0; k < selectRef.options.length; k++) {
                                if (selectRef.options[k].value == value) { 
                                    selectRef.options[k].selected = true;
                                } // if value matches subform value then select it
                            } // end loop thru elements to match
                        }
                        else {
                            for (var k=0; k < subform.elements.length; k++){
                                if (subform.elements[k].value == value) { 
                                    subform.elements[k].checked = true;
                                } // if value matches subform value then check it
                            } // end loop thru elements to match
                        }
                    } // end if non-null
                }
                else if (questionRef.type == "MCMA" && showAnswers) {
	        		eval('subform = window.document.'+ questionRef.id);
                    var value = prev_value[i];
                    var index = value.indexOf("=");
                    var replace = value.substr(index+1);
                    
                    if ( index > -1 && replace != ""){ 
                        for (var k=0; k < subform.elements.length; k++){
                            if (subform.elements[k].value == replace) { 
                                subform.elements[k].checked = true; // check box if values match and not null
                            } // end if values match and not null
                        } // end loop thru subform elements
                    } // end if non-null    
                } // end MCMA type
                else if (questionRef.type == "SVTXT" && showAnswers){
	        		eval('subform = window.document.'+ questionRef.id);
                    var value = prev_value[i];
                    var index = value.indexOf("=");
                    if ( index > -1 ){ 
                        value = value.replace(/\+/g, "%20"); // replace '+' with %20 (i.e. space)
                        subform.elements[0].value = unescape(value.substr(index+1)); // grab text value
                    }
                } // end SVTXT type
                else if (questionRef.type == "SSI" || questionRef.type == "SST") {
                    var respLabels = questionRef.response_labels;
                    var value = prev_value[i];
                    var splitVal = value.split("=");
		    var observableName = splitVal[0];
		    var observableValue = splitVal.slice(1).join("=");
                    for (var k=0; k< respLabels.length; k++) {
                        if ( respLabels[k] == observableName ) {
                        	if (observableValue == " " || observableValue == "null") {
                        		observableValue = "";
                        	}
				questionRef.response_array[k] = observableValue;
                        } // end if label found
                    } // loop thru labels to match
                } // end SSAI/Ts
                
            } // end if Question identified for previous response name

        } // end for loop thru Questions

    } // end for loop thru previous responses
	
    var i = 1;
    while (i <= Question.index) {
    	var qRef = Question[i];
    	if (qRef.type == "SSI") {
    		writeFlashAsmt(i);
    		i++;
    	}
    	else if (qRef.type == "SST") {
    		writeFlashAsmt(i);
    		// Fast forward through all the SST within the same testlet
    		for (j = i+1; j <= Question.index && (Question[j].type == "SST" && Question[j].groupid == qRef.groupid); j++);
    		i = j;
    	}
    	else {
    		i++;
    	}
    }

} // end reposition function

/**
*   <!-- UNICOMMENT 
*   Method to write the HTML for a Flash assessment item.  This includes
*   generating and inserting the XML initialization string as needed.
*
*   Method:     writeFlashAsmt
*
*   Parameters: 
*       content     String
*
*   Return: void
*   UNICOMMENT -->
*/
function writeFlashAsmt(index) {
	var Q = Question[index];
    var xmlInit = '<assessment id="'+Q.groupid+ '"';
    xmlInit += ' response="' + ((is.is_ie6up) ? "some":"all" ) + '"';
    xmlInit += ' callback="setItemResponse" theme="html"';
    xmlInit += ' interface="' + flashInterface +'"'
    xmlInit += ' interactive="' + flashInteractive + '"';
    xmlInit += ' prefix="' + flashPrefix + '"';
    
    
        //Get the value of the session from the cookie
   
    	cookieVal = "";
    	allCookies = new Array();
    	allCookies = document.cookie.split('; ');
    	for(a = 0; a < allCookies.length; a++){
    		NameVal  = new Array();
    		NameVal  = allCookies[a].split('=');
    		if(NameVal[0] == 'vds-cookie'){
    			cookieVal = unescape(NameVal[1]);
    		}
    	}
  
    xmlInit += ' session="' + cookieVal + '">';

    //xmlInit += ' session="' + window.document.page.SESSION_ID.value + '">';
    var obsString = "";
    if (Q.type == "SSI") {
    	xmlInit += '<item id="' + Q.id + '">';
    	for (i = 1; i < Q.response_labels.length; i++) {
    		if (Q.response_array[i].length > 0) {
    			obsString += '<observable name="' + Q.response_labels[i] + '">';
    			obsString += Q.response_array[i];
    			obsString += '</observable>';
    		}
    	}
    	xmlInit += obsString + '</item>';
    }
    else {  // Testlet
    	var itemString = "";
    	for (i = index; i <= Question.index; i++) {
    		var tI = Question[i];
    		if (tI.groupid != Q.groupid) break;
    		itemString += '<item id="' + tI.id + '">';
    		obsString = "";
    		for (j = 1; j < tI.response_labels.length; j++) {
    			if (tI.response_array[j].length > 0) {
    				obsString += '<observable name="' + tI.response_labels[j] + '">';
    				obsString += tI.response_array[j];
    				obsString += '</observable>';
    			}
    		}
    		itemString += obsString + '</item>';
    	}
    	xmlInit += itemString;
    }
    xmlInit += '</assessment>';
//    alert("Setting " + Q.groupid + "Flash.xmlInit=\n" + xmlInit);
    xmlInit = encodeURIComponent(xmlInit);
    var qName = Q.groupid + "Flash";
    if (is.is_nav) {
   		window.document.embeds[qName].SetVariable("xmlInit",xmlInit);
    }
    else {
   		window.document[qName].SetVariable("xmlInit",xmlInit);
   	}
}

/**
*   <!-- UNICOMMENT 
*   Method to find the subform reference for a Question.  Allows multiple
*   Text Divs to be supported.
*
*   Method:     findFormRef
*
*   Parameters: 
*       QRef   Object Ref 
*
*   Return: Form Ref
*   UNICOMMENT -->
*/
function findFormRef(QRef) {
    eval('subform = window.document.'+QRef.id);
    return subform;
}