function strstr( haystack, needle, bool ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   bugfixed by: Onno Marsman
    // *     example 1: strstr('Kevin van Zonneveld', 'van');
    // *     returns 1: 'van Zonneveld'
    // *     example 2: strstr('Kevin van Zonneveld', 'van', true);
    // *     returns 2: 'Kevin '
 
    var pos = 0;
 
    haystack += '';
    pos = haystack.indexOf( needle );
    if( pos == -1 ){
        return false;
    } else{
        if( bool ){
            return haystack.substr( 0, pos );
        } else{
            return haystack.slice( pos );
        }
    }
}

Array.prototype.unique = function () {
	var r = new Array();
	o:for(var i = 0, n = this.length; i < n; i++)
	{
		for(var x = 0, y = r.length; x < y; x++)
		{
			if(r[x]==this[i])
			{
				continue o;
			}
		}
		r[r.length] = this[i];
	}
	return r;
}

// IE not such a fan of indexOf
if(!Array.indexOf){
	Array.prototype.indexOf = function(obj){
		for(var i=0; i<this.length; i++){
			if(this[i]==obj){
				return i;
			}
		}
		return -1;
	}
}

$(document).ready(function(){
	// XHTML-compliant substitute for "target=_blank"
	$('a[rel=external]').attr('target','_blank');
	$('#target_external').attr('target','_blank');
});

/**
 * Handy function for first-line-of-defence email validation
 */
function validateEmail (emailField)
{
	var emailReg = "^[\\w-_\.\'+]*[\\w-_\.\']\@([\\w-]+\\.)+[\\w]+[\\w]$";
	var regex = new RegExp(emailReg);
	return regex.test(emailField);
}