function randomChar(l){
   var   x="0123456789qwertyuioplkjhgfdsazxcvbnm";
   var   tmp="";
   for(var i=0;i< l;i++){
   tmp += x.charAt(Math.ceil(Math.random()*100000000)%x.length);
   }
   return   tmp;
}
function ChangPage(url){
    window.location = url;
}
function addBookmark(title,url){
        if( document.all ){
            window.external.AddFavorite( url, title);
        } else if (window.sidebar) {
            window.sidebar.addPanel(title, url,"");
        } else if( window.opera && window.print ) {
            return true;
        }
    }
function over(obj){
    obj.style.background = "";
    obj.style.border = "solid 1px #ccc";      
    }
function out(obj){
    obj.style.background = "#f5f5f5"; 
    obj.style.border = "dotted 1px #aaa";         
    }