function showLayer( whichLayer, visible){
	var elem, vis;
	if( document.getElementById )
		elem = document.getElementById( whichLayer );
	else if( document.all )
		elem = document.all[whichLayer];
	else if( document.layers )
		elem = document.layers[whichLayer];
	vis = elem.style;
	if(visible == null) {
		if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
			vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
		vis.display = (vis.display==''||vis.display=='block')?'none':'block';
	} else {
		vis.display = (visible==true)?'block':'none';
	}
}

function setLayer(whichLayer) {
	if(whichLayer.indexOf('find_company_div')!=-1) {
		showLayer(whichLayer,true);
		showLayer('plan_route_div',false);
	} else {
		showLayer(whichLayer,true);
		showLayer('find_company_div',false);
	}
}

function getNearest(lat,lon,lang) {
	ajaxFunction('nearby','ajaxGetNearestEnities.php?lat='+lat+'&lon='+lon+'&lang='+lang);
}

function ajaxFunction(tagId, url)
{
var xmlhttp;
if (window.XMLHttpRequest) {
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
} else if (window.ActiveXObject){
// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
} else {
alert("Your browser does not support XMLHTTP!");
}
xmlhttp.onreadystatechange=function() {
if(xmlhttp.readyState==4) { document.getElementById(tagId).innerHTML = xmlhttp.responseText; }
}
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}

$(document).ready(function(){
$("#keywords").autocomplete("ajax.getKeyword.php", {
	multiple: true,
	mustMatch: true,
    formatItem: function(row) {
    	//chkKeyword("keyword");
    	return row[0]; 
    }
});
});

function addLoadEvent(func) { 
  var oldonload = window.onload; 
  if (typeof window.onload != 'function') { 
    window.onload = func; 
  } else { 
    window.onload = function() { 
      if (oldonload) { 
        oldonload(); 
      } 
      func(); 
    } 
  } 
}