// JavaScript Document
if (typeof jQuery == 'undefined') {  
    // jQuery is not loaded
	alert('jQuery is required to run this script');
}
var rvGuid;
var rvRel = 'RV';
var rvFilter = '';
var rvFormatFunction = 'rvFormatRandomVehicle';
var rvElements;
var rvTotal;
function rvVehicles(){
    rvElements = $('*[rel="'+rvRel+ '"]').html('<div style="padding:5px; text-align:center;"><img src="http://www.websitejockey.com/Resources/script-random-vehicle/preloader.gif" /></div>');
    rvTotal = rvElements.length;	
    request = 'http://www.websitejockey.com/Resources/script-random-vehicle/RandomVehicles.js.php?rvGuid=' + rvGuid + 
    			'&rel=' + rvRel + '&rvFilter=' + rvFilter + '&count=' + rvTotal;
	aObj = new JSONscriptRequest(request);
	aObj.buildScriptTag();
	aObj.addScriptTag();	
}
function JSONscriptRequest(fullUrl) {
    // REST request path
    this.fullUrl = fullUrl; 
    // Keep IE from caching requests
    this.noCacheIE = '&noCacheIE=' + (new Date()).getTime();
    // Get the DOM location to put the script tag
    this.headLoc = document.getElementsByTagName("head").item(0);
    // Generate a unique script tag id
    this.scriptId = 'JscriptId' + JSONscriptRequest.scriptCounter++;
}

// Static script ID counter
JSONscriptRequest.scriptCounter = 1;

// buildScriptTag method
//
JSONscriptRequest.prototype.buildScriptTag = function () {

    // Create the script tag
    this.scriptObj = document.createElement("script");
    
    // Add script object attributes
    this.scriptObj.setAttribute("type", "text/javascript");
    this.scriptObj.setAttribute("charset", "utf-8");
    this.scriptObj.setAttribute("src", this.fullUrl + this.noCacheIE);
    this.scriptObj.setAttribute("id", this.scriptId);
}
 
// removeScriptTag method
// 
JSONscriptRequest.prototype.removeScriptTag = function () {
    // Destroy the script tag
    this.headLoc.removeChild(this.scriptObj);  
}

// addScriptTag method
//
JSONscriptRequest.prototype.addScriptTag = function () {
    // Create the script tag
    this.headLoc.appendChild(this.scriptObj);
}