function nospecials(e)
{
	var key;
	var keychar;

	if (window.event)
	key = window.event.keyCode;
	else if (e)
		key = e.which;
	else
		return true;

	keychar = String.fromCharCode(key);
	keychar = keychar.toLowerCase();

	if ((key==null) || (key==0) || (key==8) || (key==9) || (key==13) || (key==27) )
		return true;

	else if ((("abcdefghijklmnopqrstuvwxyz0123456789_-\. ").indexOf(keychar) > -1))
		return true;
	else
		return false;
}

function justemails(e)
{
	var key;
	var keychar;

	if (window.event)
	key = window.event.keyCode;
	else if (e)
		key = e.which;
	else
		return true;

	keychar = String.fromCharCode(key);
	keychar = keychar.toLowerCase();

	if ((key==null) || (key==0) || (key==8) || (key==9) || (key==13) || (key==27) )
		return true;

	else if ((("abcdefghijklmnopqrstuvwxyz0123456789_-\@\.").indexOf(keychar) > -1))
		return true;
	else
		return false;
}

function numbersonly(e)
{
	var key;
	var keychar;

	if (window.event)
	key = window.event.keyCode;
	else if (e)
		key = e.which;
	else
		return true;

	keychar = String.fromCharCode(key);
	keychar = keychar.toLowerCase();

	if ((key==null) || (key==0) || (key==8) || (key==9) || (key==13) || (key==27) )
		return true;

	else if ((("0123456789").indexOf(keychar) > -1))
		return true;
	else
		return false;
}

function floatsonly(e)
{
	var key;
	var keychar;

	if (window.event)
	key = window.event.keyCode;
	else if (e)
		key = e.which;
	else
		return true;

	keychar = String.fromCharCode(key);
	keychar = keychar.toLowerCase();

	if ((key==null) || (key==0) || (key==8) || (key==9) || (key==13) || (key==27) )
		return true;

	else if ((("0123456789.").indexOf(keychar) > -1))
		return true;
	else
		return false;
}

function check_email( theemail )
{
	var pattern = new RegExp(/^(("[\w-\s]+")|([\w-]+(?:\.[\w-]+)*)|("[\w-\s]+")([\w-]+(?:\.[\w-]+)*))(@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$)|(@\[?((25[0-5]\.|2[0-4][0-9]\.|1[0-9]{2}\.|[0-9]{1,2}\.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\]?$)/i) ;
	return pattern.test( theemail ) ;
}

unixtime = function()
{
	return parseInt(new Date().getTime().toString().substring(0, 10)) ;
}

String.prototype.trimreturn = function(){
	if ( this.substr((this.length-2), this.length) == "\r\n" ) { return this.substr(0, (this.length-2)) ; }
	else if ( this.substr((this.length-1), this.length) == "\n" ) { return this.substr(0, (this.length-1)) ; }
	else { return this ; }
};
String.prototype.tags = function(){ var string = this.replace(/>/g, "&gt;"); return string.replace(/</g, "&lt;"); };