function LTrim(str){   
    var whitespace = new String(" \t\n\r");   
    var s = new String(str);   
  
    if (whitespace.indexOf(s.charAt(0)) != -1){   
        var j=0, i = s.length;   
        while (j < i && whitespace.indexOf(s.charAt(j)) != -1){   
            j++;   
        }   
        s = s.substring(j, i);   
    }   
    return s;   
}   
  
 
function RTrim(str){   
    var whitespace = new String(" \t\n\r");   
    var s = new String(str);   
  
    if (whitespace.indexOf(s.charAt(s.length-1)) != -1){   
        var i = s.length - 1;   
        while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1){   
            i--;   
        }   
        s = s.substring(0, i+1);   
    }   
    return s;   
}   
  
  
function Trim(str){   
    return RTrim(LTrim(str));   
} 
function check(){
		var txt=document.getElementById("keyword").value;

	var siteid=document.getElementById("siteid").value;
	txt=txt.replace(/\\/g," ");
	txt=Trim(txt);
	if(txt==""||txt==null)
	{
		alert("请输入检索词!");
		return false; 
	}
	var _title="";
	var _content="";
	
	var _kwArray=txt.split(" ");	
	for (var i=0;i<(_kwArray.length);i++ )
	{
		var _var=_kwArray[i];
		if(_var.length>=1){
			if(i==0){
				_title="doctitle='"+_kwArray[i]+"'";
				_content="doccontent='"+_kwArray[i]+"'";
			}else{
					_title=_title+" and doctitle='"+_kwArray[i]+"'";
					_content=_content+" and doccontent='"+_kwArray[i]+"'";
			}
		}
	}

	txt="(("+_title+") or ("+_content+")) and (siteid='"+siteid+"') and (docstatus='10') ";
	if(document.getElementById("secondsearch").checked==true && document.getElementById("searchword").value!="")
	{
		txt ="("+txt +") and ("+ document.getElementById("searchword").value+")" ;
		
	}

	document.getElementById("searchword").value=txt;

	return true;
}
function search(){	
	
	var txt=document.getElementById("keyword").value;

	var siteid=document.getElementById("siteid").value;
	txt=txt.replace(/\\/g," ");
	txt=Trim(txt);
	if(txt==""||txt==null)
	{
		alert("请输入检索词!");
		return false; 
	}

	var _title="";
	var _content="";
	
	var _kwArray=txt.split(" ");	
	for (var i=0;i<(_kwArray.length);i++ )
	{
		var _var=_kwArray[i];
		if(_var.length>=1){
			if(i==0){
				_title="doctitle='"+_kwArray[i]+"'";
				_content="doccontent='"+_kwArray[i]+"'";
			}else{
					_title=_title+" and doctitle='"+_kwArray[i]+"'";
					_content=_content+" and doccontent='"+_kwArray[i]+"'";
			}
		}
	}
	txt="(("+_title+") or ("+_content+")) and (siteid="+siteid+") and (docstatus=10) ";
	
	document.getElementById("searchword").value=txt;
	
	return true;
}
function load(){
	document.getElementById("keyword").value="";
}

var isIE = /MSIE/i.test(window.navigator.userAgent);
function read()
{
	
	if(document.getElementById("keyword").value==""){
		var data = document.getElementById("keyword");
		if(isIE) {
			data.load("savesomething");
			data.value = data.getAttribute("keepit");
		} else {
			var value = window.globalStorage['savesomething'].getItem("keepit");
			data.value = value;
		}
	}else{
		save();
	}
	
}
function save()
{
	var data = document.getElementById("keyword");
	if(isIE) {
		data.setAttribute("keepit",data.value);
		data.save("savesomething");
	} else {
		window.globalStorage['savesomething'].setItem("keepit",data.value);
	}
}