/* 	

Dynamic iframe script, by DaydreamServices.com
		
Purpose: 	to wipe any preset or inline styles defined on an <IFRAME> tag, and set the height 
			on the fly to the size of the inner page inside the iframe.  Includes a "host header sniffer"
			script that will only execute the script if the domain is a preset value in an array.

*/					
			
//document.domain = "citizen.org";		
					
// Array of sites that are valid
// For example: ["localhost", "someothersite.com", "google.com"];
var sites = ["citizeninternet.org", "www.citizeninternet.org", "citizen.org", "www.citizen.org"];

// Check if the provided object exists in the provided array
function includes(arr, obj) {
    var found = false;
    
    for(var i = 0; i < arr.length; i++) {
        if(arr[i] === obj) {
            found = true;
        }
    }
    
    return found;
}

$(document).ready(
    function() {
        // Check if the site we are currenly on matches an entry in our array
        if (includes(sites, window.location.hostname)) {
		    // Loop through and null each iframe height attribute
		    // This overrides the inline styles placed by BBNC
		    $('iframe').each(
		        function(idx,el){
			        el.style.height='';
			    }
		    );
    		
            // source: http://sonspring.com/journal/jquery-iframe-sizing
	        // Set specific variable to represent all iframe tags.
		    var iFrames = document.getElementsByTagName('iframe');
		    
		    // We need to modify the src values for the iframes in the page,
		    // This is necessary due to security restrictions, if the iframes aren't 
		    // pointing at the same domain as the current domain, the script below will fail
		    // with a security exception becase javascript does not allow
		    for (var i = 0, j = iFrames.length; i < j; i++) {
			    var iSource = iFrames[i].src.replace('www.citizen.org', window.location.hostname);
				
			    iFrames[i].src = '';
			    iFrames[i].src = iSource;
			}

		    // Resize heights.
		    function iResize() {
			    // Iterate through all iframes in the page.
			    for (var i = 0, j = iFrames.length; i < j; i++) {
				    // Set inline style to equal the body height of the iframed content.
				    changeHeight(iFrames[i]);
			    }
		    }

		    // Check if browser is Safari or Opera.
		    if ($.browser.safari || $.browser.opera) {
			    // Start timer when loaded.
			    $('iframe').load(
			        function() {
					    setTimeout(iResize, 0);
				    }
			    );

			    // Safari and Opera need a kick-start.
			    for (var i = 0, j = iFrames.length; i < j; i++) {
				    var iSource = iFrames[i].src;
    				
				    iFrames[i].src = '';
				    iFrames[i].src = iSource;
			    }
		    } else {
			    // For other good browsers.
			    $('iframe').load(
			        function() {
					    // Set inline style to equal the body height of the iframed content.
                        changeHeight(this);
				    }
			    );
		    }
        }
    }
);					

// Change the height of the iframe accordingly based on the browser        
function changeHeight(iframe) {

    var innerDoc = (iframe.contentDocument) ? iframe.contentDocument : iframe.contentWindow.document;

    if ($.browser.msie) {
        // Works in IE
        iframe.style.height = iframe.contentWindow.document.body.scrollHeight + 'px';
    } else {
        iframe.style.height = innerDoc.body.offsetHeight + 32 + 'px'; //Extra height FireFox
    }
}