function item(){
this.name = '';
this.pic = '';
this.info = '';
this.num = 99;
}
item.prototype.showiteminfo = function(){
document.getElementById('myiteminfo').innerHTML = this.name + '<br>' + this.info;
}
item.prototype.showchoiceiteminfo = function(){
document.getElementById('choiceiteminfo').innerHTML = this.name + '<br>' + this.info;
} 


var mystock = new Array(10);
mystock[0] = new item();
mystock[1] = new item();
mystock[2] = new item();
mystock[3] = new item();
mystock[4] = new item();
mystock[5] = new item();
mystock[6] = new item();
mystock[7] = new item();
mystock[8] = new item();
mystock[9] = new item();

mygil = 200;