function  searchs(){
	var key	= document.getElementById("searchvalue").value;
	if(key == ""){
		alert("请您输入搜索内容");
		return false;
	}else{
		var actions=	document.getElementById("actions").value;
	 	var requiretag = encodeURIComponent(document.getElementById("searchvalue").value);
	 	if(actions=="post"){
		 	document.forms['sform'].action="forumsearch.do?radio=post&keywords="+requiretag;
	        document.forms['sform'].submit();
	 	}else{
		 	document.forms['sform'].action="friendsearch.do?radio=user&keywords="+requiretag;
	        document.forms['sform'].submit();
	 	}
    }
 }
 function enterIn(evt){
	  var evt=evt?evt:(window.event?window.event:null); 
	  if (evt.keyCode==13){
			var key	= document.getElementById("searchvalue").value;
			if(key == ""){
				alert("请您输入搜索内容");
				return false;
			}else{
				var actions=	document.getElementById("actions").value;
			 	var requiretag = encodeURIComponent(document.getElementById("searchvalue").value);
			 	if(actions=="post"){
				 	document.forms['sform'].action="forumsearch.do?radio=post&keywords="+requiretag;
			        document.forms['sform'].submit();
			 	}else{
				 	document.forms['sform'].action="friendsearch.do?radio=user&keywords="+requiretag;
			        document.forms['sform'].submit();
			 	}
		    }
	}
}