function increaseTextSize(action) {
	
	var currsize = document.getElementById('currsize');
	
	switch (action) {
		
		case "increase":
			var newsize = Number(currsize.value) + 10;
			break;
			
		case "decrease":
			var newsize = Number(currsize.value) - 10;
			break;
			
		case "reset":
			var newsize = 75;
			break;
		
	}
	
	var bodytag = document.getElementById('body');

	bodytag.style.fontSize = newsize+"%";
	
	currsize.value = newsize;

}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function ToggleID(id) { 

	var element = document.getElementById(id);
	
	if(element.style.display == "block") { 
	
		element.style.display = "none";
	
	} else { 
	
		element.style.display = "block";
	
	}

}





// **************
// * AJAX MAGIC *
// **************
function createRequestObject() {
	var request_o; //declare the variable to hold the object.
	var browser = navigator.appName; //find the browser name
	if(browser == "Microsoft Internet Explorer"){
		/* Create the object using MSIE's method */
		request_o = new ActiveXObject("Microsoft.XMLHTTP");
	}else{
		/* Create the object using other browser's method */
		request_o = new XMLHttpRequest();
	}
	return request_o; //return the object
}

var http = createRequestObject();

// **********************************************************************
//    FUNCTION:  aj_checkAvailable();
// STATECHANGE:  _getAvail
function aj_checkAvailable () { 
	
	var username = document.getElementById('reg_username');
	
	if(username.value !== "") { 
	
		var url = "includes/ajax_responder.php?action=aj_checkAvailable&value="+username.value;
		http.open('get', url);
		http.onreadystatechange = _getAvail;
		http.send(null);
	
	}

}

function _getAvail() {
	
	var username = document.getElementById('reg_username');
	
	if(http.readyState == 1 || http.readyState == 2) { 
		document.getElementById('avail_output').innerHTML = "<img src=\"images/loading_blue_bar.gif\" style=\"opacity:0.5;filter:Alpha(Opacity=50);\" alt=\"\" />";
	}
	
	if(http.readyState == 4){
		var response = http.responseText;
		if(response == "1") {
			document.getElementById('avail_output').innerHTML = "<strong style=\"color:#00aa00;\">'"+username.value+"' is available!</strong>";
		} else { 
			document.getElementById('avail_output').innerHTML = "<strong style=\"color:#aa0000;\">'"+username.value+"' is not available.</strong>";
		}
	}
	
}
// **********************************************************************







// FORUM STUFF

function f_messageAdd(func) {
	
	var output  = "";
	var input   = "";
	var message = document.getElementById('message');
	var msglen = 0;
	
	switch (func) { 
	
		case "Bold":
			input = window.prompt("Enter the text that you wish to bold below.");
			output = "[B]"+input+"[/B]";
			break;
	
		case "Italic":
			input = window.prompt("Enter the text that you wish to emphasise below.");
			output = "[I]"+input+"[/I]";
			break;
	
		case "Underline":
			input = window.prompt("Enter the text that you wish to underline below.");
			output = "[U]"+input+"[/U]";
			break;
	
		case "List":
			output = "\n[LIST]\n[*]Example 1\n[*]Example 2\n[*]Example 3\n[/LIST]";
			break;
	
		case "URL":
			input = window.prompt("Enter the URL you want to link to.");
			output = "[URL="+input+"]";
			input = window.prompt("Enter the text you want to link.");
			output = output+input+"[/URL]";
			break;
	
		case "E-Mail":
			input = window.prompt("Enter the E-Mail address.");
			output = "[URL=mailto:"+input+"]"+input+"[/URL]";
			break;
	
		case "Image":
			input = window.prompt("Enter the URL address to the image.");
			output = "[IMG]"+input+"[/IMG]";
			break;
	
	}
	
	if(input !== null) {
		
		msglen = message.value;
		msglen = msglen.length;
		
		if(msglen > 0) { 
		
			message.value = message.value+" "+output;
			
		} else { 
		
			message.value = message.value+output;
		
		}
		
		message.focus();
		
	}
	
}