function readXML(){
var myXML:XML = new XML();
myXML.ignoreWhite=true;
myXML.load("xml/question_form.xml");
myXML.onLoad = function(success){
if (success){
_global.num= myXML.firstChild.childNodes.length;
trace(_global.num);
for(i=0;i<_global.num;i++){
_global.question[i] = myXML.firstChild.childNodes[i].childNodes[1].firstChild.nodeValue;
_global.choice1[i] = myXML.firstChild.childNodes[i].childNodes[2].firstChild.nodeValue;
_global.choice2[i] = myXML.firstChild.childNodes[i].childNodes[3].firstChild.nodeValue;
_global.choice3[i] = myXML.firstChild.childNodes[i].childNodes[4].firstChild.nodeValue;
_global.choice4[i] = myXML.firstChild.childNodes[i].childNodes[5].firstChild.nodeValue;
_global.check_answer[i] = myXML.firstChild.childNodes[i].childNodes[6].firstChild.nodeValue;
_global.tips[i] = myXML.firstChild.childNodes[i].childNodes[7].firstChild.nodeValue;
}
for(i=0;i<_global.num;i++){
trace(_global.random_question[i]);
}
} //if
} //onload
}//read xml