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