window.onload = function () {
		var f = document.getElementById("txt1");
		f.setAttribute("autocomplete", "off"); 
                var oTextbox = new AutoSuggestControl(document.getElementById("txt1"), new StateSuggestions());        
            }

function AutoSuggestControl(oTextbox, oProvider) 
{
    this.cur /*:int*/ = -1;
    this.layer = null;
    this.provider = oProvider;
    this.textbox  = oTextbox;
    this.init();
}
AutoSuggestControl.prototype.autosuggest = function (aSuggestions,bTypeAhead) 
{
    if (aSuggestions.length > 0) 
    {
        if (bTypeAhead) 
	{
           this.typeAhead(aSuggestions[0]);
        }
        this.showSuggestions(aSuggestions);
    } 
    else 
    {
        this.hideSuggestions();
    }
};
AutoSuggestControl.prototype.createDropDown = function () {

    var oThis = this;
    this.layer = document.createElement("div");
    this.layer.className = "suggestions";
    this.layer.style.visibility = "hidden";
    this.layer.style.width = this.textbox.offsetWidth;
    this.layer.onmousedown = 
    this.layer.onmouseup = 
    this.layer.onmouseover = function (oEvent) {
        oEvent = oEvent || window.event;
        oTarget = oEvent.target || oEvent.srcElement;

        if (oEvent.type == "mousedown") {
            oThis.textbox.value = oTarget.firstChild.nodeValue;
            oThis.hideSuggestions();
        } else if (oEvent.type == "mouseover") {
            oThis.highlightSuggestion(oTarget);
        } else {
            oThis.textbox.focus();
        }
    };
    
    
    document.body.appendChild(this.layer);
};

AutoSuggestControl.prototype.getLeft = function () {

    var oNode = this.textbox;
    var iLeft = 0;
    
    while(oNode.tagName != "BODY") {
        iLeft += oNode.offsetLeft;
        oNode = oNode.offsetParent;
    }
    return iLeft;
};

AutoSuggestControl.prototype.getTop = function (){

    var oNode = this.textbox;
    var iTop = 0;
    
    while(oNode.tagName != "BODY") {
        iTop += oNode.offsetTop;
        oNode = oNode.offsetParent;
    }
    
    return iTop;
};

AutoSuggestControl.prototype.handleKeyDown = function (oEvent) {

    switch(oEvent.keyCode) {
        case 38: //up arrow
            this.previousSuggestion();
            break;
        case 40: //down arrow 
            this.nextSuggestion();
            break;
        case 13: //enter
            this.hideSuggestions();
            break;
    }

};

AutoSuggestControl.prototype.handleKeyUp = function (oEvent) {

    var iKeyCode = oEvent.keyCode;

    //for backspace (8) and delete (46), shows suggestions without typeahead
    if (iKeyCode == 8 || iKeyCode == 46) {
        this.provider.requestSuggestions(this, false);
        
    //make sure not to interfere with non-character keys
    } else if (iKeyCode < 32 || (iKeyCode >= 33 && iKeyCode < 46) || (iKeyCode >= 112 && iKeyCode <= 123)) {
        //ignore
    } else {
        //request suggestions from the suggestion provider with typeahead
        this.provider.requestSuggestions(this, true);
    }
};

AutoSuggestControl.prototype.hideSuggestions = function () {
    this.layer.style.visibility = "hidden";
};

AutoSuggestControl.prototype.highlightSuggestion = function (oSuggestionNode) {
    
    for (var i=0; i < this.layer.childNodes.length; i++) {
        var oNode = this.layer.childNodes[i];
        if (oNode == oSuggestionNode) {
            oNode.className = "current"
        } else if (oNode.className == "current") {
            oNode.className = "";
        }
    }
};

AutoSuggestControl.prototype.init = function () {

    //save a reference to this object
    var oThis = this;
    
    //assign the onkeyup event handler
    this.textbox.onkeyup = function (oEvent) {
    
        //check for the proper location of the event object
        if (!oEvent) {
            oEvent = window.event;
        }    
        
        //call the handleKeyUp() method with the event object
        oThis.handleKeyUp(oEvent);
    };
    
    //assign onkeydown event handler
    this.textbox.onkeydown = function (oEvent) {
    
        //check for the proper location of the event object
        if (!oEvent) {
            oEvent = window.event;
        }    
        
        //call the handleKeyDown() method with the event object
        oThis.handleKeyDown(oEvent);
    };
    
    //assign onblur event handler (hides suggestions)    
    this.textbox.onblur = function () {
        oThis.hideSuggestions();
    };
    
    //create the suggestions dropdown
    this.createDropDown();
};

AutoSuggestControl.prototype.nextSuggestion = function () {
    var cSuggestionNodes = this.layer.childNodes;

    if (cSuggestionNodes.length > 0 && this.cur < cSuggestionNodes.length-1) {
        var oNode = cSuggestionNodes[++this.cur];
        this.highlightSuggestion(oNode);
        this.textbox.value = oNode.firstChild.nodeValue; 
    }
};

AutoSuggestControl.prototype.previousSuggestion = function () {
    var cSuggestionNodes = this.layer.childNodes;

    if (cSuggestionNodes.length > 0 && this.cur > 0) {
        var oNode = cSuggestionNodes[--this.cur];
        this.highlightSuggestion(oNode);
        this.textbox.value = oNode.firstChild.nodeValue;   
    }
};

AutoSuggestControl.prototype.selectRange = function (iStart /*:int*/, iLength /*:int*/) {

    //use text ranges for Internet Explorer
    if (this.textbox.createTextRange) {
        var oRange = this.textbox.createTextRange(); 
        oRange.moveStart("character", iStart); 
        oRange.moveEnd("character", iLength - this.textbox.value.length);      
        oRange.select();
        
    //use setSelectionRange() for Mozilla
    } else if (this.textbox.setSelectionRange) {
        this.textbox.setSelectionRange(iStart, iLength);
    }     

    //set focus back to the textbox
    this.textbox.focus();      
}; 

AutoSuggestControl.prototype.showSuggestions = function (aSuggestions /*:Array*/) {
    
    var oDiv = null;
    this.layer.innerHTML = "";  //clear contents of the layer
    
    for (var i=0; i < aSuggestions.length; i++) {
        oDiv = document.createElement("div");
    	oDiv.style.fontSize = "14px";	
        oDiv.appendChild(document.createTextNode(aSuggestions[i]));
        this.layer.appendChild(oDiv);
	if(i == 20)
	{	
		break;
	}	
    }
	
	if(document.location.href == 'http://hellotrade/' || document.location.href == 'http://www.hellotrade.com/')
	{
		this.layer.style.width = "519px";
	}
	else
	{
		this.layer.style.width = "335px";
	}
    	
    this.layer.style.left = this.getLeft() + "px";
    this.layer.style.top = (this.getTop()+this.textbox.offsetHeight) + "px";
    this.layer.style.visibility = "visible";
    this.layer.style.background = "#FFEEF6";
};

AutoSuggestControl.prototype.typeAhead = function (sSuggestion /*:String*/) {

    //check for support of typeahead functionality
    if (this.textbox.createTextRange || this.textbox.setSelectionRange){
        var iLen = this.textbox.value.length; 
        this.textbox.value = sSuggestion; 
        this.selectRange(iLen, sSuggestion.length);
    }
};


/**
 * Provides suggestions for state names (USA).
 */
var states = [];
function StateSuggestions() {
    
}

/**
 * Request suggestions for the given autosuggest control. 
 */
StateSuggestions.prototype.requestSuggestions = function (oAutoSuggestControl ,
                                                          bTypeAhead) {
    var aSuggestions = [];
    var sTextboxValue = oAutoSuggestControl.textbox.value;
    var flag = 0;
    var len = sTextboxValue.replace(/\s+/g,"");
    len = len.length;
    
    if(states.length == 0 && len>2)
    {
	flag=1;
    }
if(flag == 0)
    {
	if (sTextboxValue.length > 0)
	{
		//search for matching states
		for (var i=0; i < states.length; i++) { 
			if (states[i].toUpperCase().indexOf(sTextboxValue.toUpperCase()) == 0) {
			aSuggestions.push(states[i]);
			
			}
		}
		if(aSuggestions.length < 1 && len == 3)
		{
			flag=1;
		}
	
    	}
    oAutoSuggestControl.autosuggest(aSuggestions, bTypeAhead);
    }	
// 	alert(flag);		
    if(flag)
    {
// 	document.getElementById('wait').innerHTML='Wait....';
    	try
	{
   		// Opera 8.0+, Firefox, Safari
   		ajaxRequest = new XMLHttpRequest();
 	}catch (e)
	{
   		// Internet Explorer Browsers
   		try
		{
      			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
   		}catch (e) 
		{
      			try
			{
         			ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
      			}catch (e)
			{
         			// Something went wrong
         			alert("Your browser broke!");
        	 		return false;
			}
   		}
 	}
 	ajaxRequest.onreadystatechange = function()
	{
   		if(ajaxRequest.readyState == 4)
		{
			states=ajaxRequest.responseText.split(",");
// 			document.getElementById('wait').innerHTML='';
// 			
			if (sTextboxValue.length > 0)
			{
  				//search for matching states
				for (var i=0; i < states.length; i++) 
				{ 
					if(states[i].toUpperCase().indexOf(sTextboxValue.toUpperCase()) == 0) 
					{
					aSuggestions.push(states[i]);
					} 
				}
    			}
			oAutoSuggestControl.autosuggest(aSuggestions, bTypeAhead);	
   		}
 	}
 	// Now get the value from user and pass it to
 	// server script.
 			
 	var queryString = "?query=" + sTextboxValue+"&from=txt" ;
 	ajaxRequest.open("GET", "/cgi-bin/lucene-suggestion.pl" + 
        queryString, true);
 	ajaxRequest.send(null);
   }
	
   //provide suggestions to the control
    
};