// function used to delay by a set time calling ajax script until a specified
// number of ms from the last keypress
var key_location_delay = (function() {
	var timer = 0;
	return function(callback, ms) {
		clearTimeout(timer);
		timer = setTimeout(callback, ms);
	};
})();

function suggest_location(e)
{
	var intKey = 0;
	e = (window.event)? event : e;
	intKey = (e.keyCode)? e.keyCode: e.charCode;

	if (intKey == 40) //down
	{
		
		//SWITCH THEM OFF
		if (this.pos>0 && this.pos<=num_rows)
		{
			
			div_id = "sl"+this.pos;
		
			document.getElementById(div_id).style.background = '#F1F8FF';
			document.getElementById("find").value = '';
		}
		
		//SWITCH THEM ON
		if (this.pos+1<=num_rows)
		{			
			this.pos = this.pos+1;
			div_id = "sl"+this.pos;
			document.getElementById(div_id).style.background = '#ffffff';
			document.getElementById("find").value = document.getElementById(div_id + "_value").value.replace(/&amp;/gi, '&');
		}
		else if(this.pos+1 == num_rows+1)
		{
			this.pos = this.pos +1;			
		}
	}
	else if (intKey == 38) //up
	{
		//SWITCH THEM OFF
		if (this.pos>0 && this.pos<=num_rows)
		{
			div_id = "sl"+this.pos;
			document.getElementById(div_id).style.background = '#F1F8FF';
			document.getElementById("find").value = '';
		}
		
		//SWITCH THEM ON
		if (this.pos-1>0)
		{
			this.pos = this.pos-1;
			div_id = "sl"+this.pos;
			document.getElementById(div_id).style.background = '#ffffff';
			input_text = 
			document.getElementById("find").value = document.getElementById(div_id + "_value").value.replace(/&amp;/gi, '&');
		}
		else if (this.pos-1==0)
		{
			this.pos = this.pos-1;
		}
	}
	else 
	{
		this.pos=0;
		
		key_location_delay(function(){
			getSuggestions_location();
		}, 300);
		
	}
}

function getSuggestions_location()
{
	xmlHttp=GetXmlHttpObject2();

	if (xmlHttp==null)
	{
		alert ("Browser does not support HTTP Request");
		return;
	}


	var citynameleft = document.getElementById('city_nameleft');
	if (citynameleft) {
		citynameleft = citynameleft.value;
	}
	else {
		citynameleft = "";
	}

	var url="/location/suggest_location.php?str="+document.getElementById("find").value +"&city_name=" + citynameleft ;
	
	xmlHttp.onreadystatechange=displaySuggestions_location;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function displaySuggestions_location() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
		trimmed = xmlHttp.responseText.replace(/^\s+|\s+$/g, '');
		
		delim = trimmed.indexOf(":==:");
		
		num_rows = parseInt(trimmed.substr(0,delim));
		
		remaining = trimmed.substr(trimmed.indexOf(":==:")+4);
		
		trimmed = remaining;
		
		if (remaining!='')
		{
			document.getElementById("suggestBox_location").style.visibility = 'visible';
		
			document.getElementById("suggestBox_location").innerHTML=remaining;
		}
		else
		{
			document.getElementById("suggestBox_location").style.visibility = 'hidden';
			this.pos = 0;
		}
	} 	
}



function changePosition_location(id)
{
	if (this.pos > 0 && this.pos <= num_rows)
	{
		div_id = "sl"+this.pos;
		document.getElementById(div_id).style.background = '#F1F8FF';
		document.getElementById("find").value = '';
	}
		
	this.pos = id;
	div_id = "sl"+this.pos;
	document.getElementById(div_id).style.background = '#ffffff';
}

function updateSearch_location(city)
{
	window.location = "/cities/" + city;
	/*
	if (this.pos > 0 && this.pos <= num_rows)
	{
		div_id = "sl"+this.pos;
		document.getElementById(div_id).style.background = '#F1F8FF';
		document.getElementById("find").value = '';
	}
		
	this.pos = id;
	div_id = "sl"+this.pos;
	document.getElementById(div_id).style.background = '#ffffff';
	document.getElementById("find").value = document.getElementById(div_id +"_value").value.replace(/&amp;/gi, '&');
	
	document.getElementById("suggestBox_location").style.visibility = 'hidden';
	document.getElementById("find").focus();
	document.getElementById("find").value = document.getElementById("find").value;
	this.pos = 0;
	*/
}

function clickedon_location(id)
{
	//alert('yip' + document.getElementById('industry_name_left').value);
	
	if(document.getElementById('find').value=='')
	{
		document.getElementById('find').value='Find a Service ...';
	}else if( document.getElementById('find').value=='Find a Service ...')
	{
		document.getElementById('find').value='';
	}
	
	document.getElementById('suggestBox_location').style.visibility='hidden';
}

/*
function GetXmlHttpObject2()
{
	var xmlHttp;
	try
	{    // Firefox, Opera 8.0+, Safari
	    xmlHttp=new XMLHttpRequest();    
	}
	catch (e)
	{    // Internet Explorer    
		try
		{      
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");      
		}
		catch (e)
		{     
			try
			{       
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");        
			}
			catch (e)
			{        
				alert("Your browser does not support AJAX!");        
				return false;        
			}      
		}    
	}
	return xmlHttp;
}*/