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            var iTop=(window.screen.height-iHeight)/2;
            var iLeft=(window.screen.width-iWidth)/2;
            window.open(
            url,"Detail","Scrollbars=no,Toolbar=no,Location=no,Direction=no,Resizeable=no,
            Width="+iWidth+" ,Height="+iHeight+",top="+iTop+",left="+iLeft
            );
           }
window.showModalDialog·½Ê½
function ShowDialog(url) {
            var iWidth=300; //´°¿Ú¿í¶È
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}
Stack.prototype.push=function(o){
 if(this.exist(o)){
  this.remove(o);
  this.stack.unshift(o);
 }else{
  this.stack.unshift(o);
 }
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