String.prototype.Trim   =   function()   
  {   
  return   this.replace(/(^\s*)|(\s*$)/g,   "");   
  }   
    
  String.prototype.LTrim   =   function()   
  {   
  return   this.replace(/(^\s*)/g,   "");   
  }   
    
  String.prototype.RTrim   =   function()   
  {   
  return   this.replace(/(\s*$)/g,   "");
  }  
  
  function chkkey(){
         var keys=document.getElementById("merchant_name1");
         var form=document.getElementById("subtagKeyForm");
         if(keys.value.Trim()==""){
             alert("Please enter keywords!");
             keys.focus();
             return;
         }
         var str=keys.value.Trim();
         str = str.replace(/([^a-zA-Z0-9\-]+)/g," ");
         window.location.href="/search_"+str+".htm";
    }
function getEvent(){ //ie ff
    if(document.all) return window.event; 
    func=getEvent.caller; 
    while(func!=null){ 
    var arg0=func.arguments[0]; 
     if(arg0){ 
        if((arg0.constructor==Event || arg0.constructor ==MouseEvent) || (typeof(arg0)=="object" && arg0.preventDefault && arg0.stopPropagation)){  return arg0; } 
    } 
    func=func.caller; 
    } 
    return null; 
} 
function enter(){
    var evt = getEvent();
    var keyCode = evt.keyCode ? evt.keyCode : evt.charCode;
    var keys=document.getElementById("merchant_name1");
    if( keyCode==13){ 
        if(keys.value.length>=0 && keys.value.Trim()!=""){
                var str=keys.value.Trim();
                 str = str.replace(/([^a-zA-Z0-9\-]+)/g," ");
                window.location.href="/search_"+str+".htm";
        }else{
             alert("Please enter keywords!");
             keys.focus();
             return;
        }
    }
}