// vim: set tabstop=4 shiftwidth=4 foldmethod=marker :
/**
 * Basic functions that get stuff done. Previously in template.js
 */
// {{{ inherits(child, parent)
/**
 * Allow late binding of multiple inheritance.
 * Note that the constructor function never gets called c'est la vie!
 * @param child Object the object that inherits
 * @param parent Object the object to inherit from (parent)
 */
function inherits(child, parent) {
	//methods = '';
	if (typeof parent.prototype=='function') {
		inherits(child, parent.prototype);
	}
	for (var method in parent.prototype) {
		if (method == 'prototype') { continue; }
		child[method] = parent.prototype[method];
		//methods += method + ' ';
	}
	//alert(methods);
}
// }}}
// {{{ sprintf(string, var, ...)
/**
 * Mimics PHP and C sprintf() functionality
 * @see http://jan.moesen.nu/code/javascript/sprintf-and-printf-in-javascript/
 */
function sprintf()
{
	if (!arguments || arguments.length < 1 || !RegExp)
	{
		return;
	}
	var str = arguments[0];
	var re = /([^%]*)%('.|0|\x20)?(-)?(\d+)?(\.\d+)?(%|b|c|d|u|f|o|s|x|X)(.*)/; //'
	var a = b = [], numSubstitutions = 0, numMatches = 0;
	while (a = re.exec(str)) {
		var leftpart = a[1], pPad = a[2], pJustify = a[3], pMinLength = a[4];
		var pPrecision = a[5], pType = a[6], rightPart = a[7];

		//alert(a + '\n' + [a[0], leftpart, pPad, pJustify, pMinLength, pPrecision);
		numMatches++;
		if (pType == '%') {
			subst = '%';
		} else {
			numSubstitutions++;
			if (numSubstitutions >= arguments.length) {
				alert('Error! Not enough function arguments (' + (arguments.length - 1) + ', excluding the string)\nfor the number of substitution parameters in string (' + numSubstitutions + ' so far).');
			}
			var param = arguments[numSubstitutions];
			var pad = '';
			if (pPad && pPad.substr(0,1) == "'") pad = leftpart.substr(1,1);
			else if (pPad) pad = pPad;
			var justifyRight = true;
			if (pJustify && pJustify === "-") justifyRight = false;
			var minLength = -1;
			if (pMinLength) minLength = parseInt(pMinLength);
			var precision = -1;
			if (pPrecision && pType == 'f') precision = parseInt(pPrecision.substring(1));
			var subst = param;
			if (pType == 'b') subst = parseInt(param).toString(2);
			else if (pType == 'c') subst = String.fromCharCode(parseInt(param));
			else if (pType == 'd') subst = parseInt(param) ? parseInt(param) : 0;
			else if (pType == 'u') subst = Math.abs(param);
			else if (pType == 'f') subst = (precision > -1) ? Math.round(parseFloat(param) * Math.pow(10, precision)) / Math.pow(10, precision): parseFloat(param);
			else if (pType == 'o') subst = parseInt(param).toString(8);
			else if (pType == 's') subst = param;
			else if (pType == 'x') subst = ('' + parseInt(param).toString(16)).toLowerCase();
			else if (pType == 'X') subst = ('' + parseInt(param).toString(16)).toUpperCase();
		}
		str = leftpart + subst + rightPart;
	}
	return str;
}
// }}}
// {{{ popup(url, title, width, height, [windowParams, top, left, isRelative])
/**
 * Create a popup window but within dimensions of screen.
 * @author Joseph Smarr <joseph@plaxo.com>
 * @author terry chay <tychay@plaxo.com>
 * @param url string the url to point window to
 * @param title string the title for the new window (does focus if window open)
 * @param width integer width of new window
 * @param height integer height of new window
 * @param windowParams string other parameters to supply to popup
 * @param top integer offset from top
 * @param left integer offset from left
 * @param isRelative boolean if set to true, it computs top/left relative to parent
 *		window
 * @return Window object representing popup window
 */
function popup(url, title, width, height)
{
	var numArgs = arguments.length;
	var ht; //max height allowed (computed)
	var windowObj;	// window object that is returned.
	var windowParams = (numArgs > 4) ?  arguments[4] : 'statusbar=no,menubar=no,toolbar=no,scrollbars=yes,resizable=yes,top=0';
	var isOffset = (numArgs > 7) ? arguments[7] : false;
	var offset;
	// {{{ top
	if (numArgs > 5) {
		if (isOffset) {
			offset = (window.screenY) ? window.screenY : self.screenTop;
			offset = (offset) ? offset : 0;
		} else {
			offset = 0;
		}
		offset += arguments[5];
		windowParams += (windowParams) ? ',' : '';
		windowParams += 'top='+offset+',screenY='+offset;;
	} else {
		windowParams += 'top=0,screenY=0';
	}
	// }}}
	// {{{ left
	if (numArgs > 6) {
		if (isOffset) {
			offset = (window.screenX) ? window.screenX : self.screenLeft;
			offset = (offset) ? offset : 0;
		} else {
			offset = 0;
		}
		offset += arguments[6];
		windowParams += ',left='+offset+',screenX='+offset;
	}
	// }}}
	// {{{ height
	if (screen.height) { // window
		ht = screen.height;
	} else if (window.document.body.clientHeight) {  // IE
		ht = window.document.body.clientHeight;
	} else if (window.innerHeight) { // Netscape
		ht = window.innerHeight;
	} else if (document.documentElement.clientHeight) { // IE 6+
		ht = document.documentElement.clientHeight;
	} else {
		ht = 580;
	}
	if ((height != 0) && (height > ht)) {
		height = ht;
	}
	// }}}
	// {{{ add height and width to window parameters
	if (height != 0 && width != 0) {
		windowParams += ',height=' + height + ',width=' +width;;
	} else if (width != 0) {
		windowParams += ',width=' + width;
	} 
	// }}}
	windowObj = window.open(url, title, windowParams, false);
    if (windowObj) {
    	windowObj.focus(); // bring to front if window already open
    }
	return windowObj;
}
// }}}
// {{{ plx_Browser
/**
 * Browser object
 */
function plx_Browser() {
	var d=document;
	this.agt=navigator.userAgent.toLowerCase();
	this.major = parseInt(navigator.appVersion);
	this.dom=(d.getElementById)?1:0; // true for ie6, ns6
	this.ns=(d.layers);
	this.ns4up=(this.ns && this.major >=4);
	this.ns4= ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) == 4));
	this.ns6=(this.dom&&navigator.appName=="Netscape");
	this.op=this.agt.indexOf('opera')!=-1;
	this.ie=(d.all);
	this.ie4=(d.all&&!this.dom)?1:0;
	this.ie4up=(this.ie && this.major >= 4);
	this.ie5=(d.all&&this.dom);
	this.win=((this.agt.indexOf("win")!=-1) || (this.agt.indexOf("16bit")!=-1));
	this.mac=(this.agt.indexOf("mac")!=-1);
	this.gecko=(this.agt.indexOf("gecko")!=-1);
	this.safari=(this.agt.indexOf("safari")!=-1);
	this.sp2=(this.agt.indexOf('sv1')!=-1);
}
// }}}
var brz = new plx_Browser();