function click_search(){
var keyword=document.getElementById("searchtext").value;
keyword=keyword.replace(" ","+");
if(keyword!=""){
window.open("http://www.stumbleupon.com/tag/"+keyword+"/");
window.open(" http://reddit.com/search?q="+keyword+"&sort=hot");
window.open(" http://www.google.com/search?q=site:digg.com+"+keyword+"");
window.open(" http://news.google.com/news?q="+keyword+"");
window.open(" http://del.icio.us/popular/"+keyword+"/");
window.open(" http://www.technorati.com/search/"+keyword+"");
window.open(" http://digg.com/search?s="+keyword+"&section=news&search-buried=1&type=both&area=promoted&sort=new");


}else{
window.open("http://www.stumbleupon.com/tag/ ");
}
}