/**
 * Collection of crucial Javascript scripts
 * 
 * @package POWL
 * @author Sören Auer <soeren@auer.cx>
 * @copyright Copyright (c) 2004
 * @version $Id: scripts.js,v 1.37 2004/10/18 10:19:07 soerenauer Exp $
 **/

function powl() {
	this.agent = navigator.userAgent.toLowerCase();
	this.isIE = ((this.agent.indexOf("msie") != -1) && (this.agent.indexOf("opera") == -1));
}

powl.addEvent=function(el, evname, func) {
	if(this.isIE) {
		el.attachEvent("on" + evname, func);
	} else {
		el.addEventListener(evname, func, true);
	}
}

powl.removeEvent=function(el, evname, func) {
	if(this.isIE) {
		el.detachEvent("on" + evname, func);
	} else {
		el.removeEventListener(evname, func, true);
	}
}

powl.winopen=function(url,name,options) {
	if(options!='') options+=',';
	options+='resizable=yes,scrollbars=yes';
	if(name=='') name='New window';
	open(url,name,options);
	return;
}

powl.toggleChecked=function(form,match) {
	for(i=0;i<form.length;i++)
		if(form.elements[i].name.match(match))
			form.elements[i].checked=form.elements[i].checked?false:true;
}
powl.setStyleClass=function(elem,className) {
	if(typeof elem=='string')
		elem=document.getElementById(elem);
	if(!elem) return;
	if(document.all)
		elem.className=className;
	else
		elem.setAttribute('class',className);
}
powl.getElementsByName=function(name,tag) {
	var d=new Array();
	if(document.all) {
		elems=tag?document.getElementsByTagName(tag):document.all;
		for(i=0;i<elems.length;i++)
			if(elems[i].getAttribute('name')==name)
				d[d.length]=elems[i];
		return d;
	} else
		return document.getElementsByName(name);
}
powl.formOptions=function(elem) {
	var elements;
	if(elem.options)
		elements=elem.options;
	else if(typeof elem=='string' && document.getElementsByName(elem)) {
		elements=document.getElementsByName(elem);
		if(elements[0] && elements[0].options)
			elements=elements[0].options;
	}
	else
		elements=document.getElementsByName(elem.name);
	var done=false;
	if(elements) for(var i=0;i<elements.length;i++) {
		if(elements[i].value && document.getElementById(elements[i].value)!=null) {
			if(elements[i].checked || elements[i].selected) {
				done=true;
				this.setVisibility(elements[i].value,'block');
			} else
				this.setVisibility(elements[i].value,'none');
		}
		else if(elements[i].value && document.getElementsByName(elements[i].value).length>0) {
			for(section in document.getElementsByName(elements[i].value)) {
				if(elements[i].checked || elements[i].selected) {
					done=true;
					this.setVisibility(section,'block');
				} else
					this.setVisibility(section,'none');
			}
		}
	}
	ele=typeof elem=='string'?elem:elem.name;
	if(done)
		this.setVisibility(ele+'Default','none');
	else
		this.setVisibility(ele+'Default','block');
}
powl.toggleVisibility=function(id) {
	if(typeof id=='string')
		id=document.getElementById(id);
	if(id.style.display!='')
		id.style.display='';
	else id.style.display='none';
	return id.style.display;
}

powl.setVisibility=function(id,block) {
	id=(typeof id=='string'?document.getElementById(id):id);
	if(!id) return;
	if(id.style)
		id.style.display=block;
	else
		id.setAttribute('style','display:'+block);
}
powl.remove=function(node) {
	if(node.parentNode)
		d=node;
	else
		d=document.getElementById(node);
	if(!d)
		d=document.getElementsByName(node)[0];
	d.parentNode.removeChild(d);
}
powl.duplicate=function(obj) {
	d=document.getElementById(obj);
	if(!d) {
		d=document.getElementsByName(obj)[document.getElementsByName(obj).length-1];
		if((typeof d)=='undefined') {
			spans=document.all;
			for(i=0;i<spans.length;i++)
				if(spans[i].getAttribute('name')==obj)
					d=spans[i];
		}
	}
	if(d.outerHTML)
		d.parentNode.appendChild(d.cloneNode(true));//d.parentNode.innerHTML+d.outerHTML;
	else
		d.insertAdjacentElement('afterEnd',d.cloneNode(true));
}
powl.stateframe=((opener && opener.frames['top'])?opener.frames['top']:window.frames['top']);
powl.setState=function(dom,prop,val) {
	if(!this.stateframe)
		return;
	if((typeof this.stateframe.states)=='undefined')
		this.stateframe.states=new Array();
	if((typeof this.stateframe.states[dom])=='undefined')
		this.stateframe.states[dom]=new Array();
	this.stateframe.states[dom][prop]=val;
}
powl.delState=function(dom,prop) {
	delete this.stateframe.states[dom][prop];
}
powl.getState=function(dom,prop) {
	if(this.stateframe)
	if((typeof this.stateframe.states)!='undefined')
	if((typeof this.stateframe.states[dom])!='undefined') {
		return this.stateframe.states[dom][prop];
	}
}
powl.optional=function(id,prop) {
	if(this.getState('optional',id+prop)=='none') {
		this.setVisibility(id,'none');
		if(img=document.getElementById('optionalIMG'+id+prop))
			img.src=img.src.replace('minus','plus');
	}
}
powl.optionalToggle=function(id,prop) {
	if(img=document.getElementById('optionalIMG'+id+prop))
		img.src=img.src.replace('minus','plus')==img.src?img.src.replace('plus','minus'):img.src.replace('minus','plus');
	this.setState('optional',id+prop,powl.toggleVisibility(id))
}
var but,w=0;
powl.wait=function(button) {
	if(button) {
		but=button;
		but.setAttribute('disabled','disabled');
		but.form.submit();
	}
	but.value=' Please wait! ('+(++w)+') ';
	setTimeout('powl.wait()',1000);
	return true;
}

powl.resetFormInside=function(id) {
        var childs=((typeof id)=='string')?document.getElementById(id).childNodes:id.childNodes;
        for(var i=0;i<childs.length;i++) {
                if(childs[i].checked)
                        childs[i].checked=false;
                else if(childs[i].value)
                        childs[i].value='';
                powl.resetFormInside(childs[i]);
        }
}
// implement some ie specific methods (insertAdjacentElement, insertAdjacentHTML,
// insertAdjacentText) for mozilla
if(typeof HTMLElement!="undefined" && ! HTMLElement.prototype.insertAdjacentElement){
        HTMLElement.prototype.insertAdjacentElement = function (where,parsedNode)
        {
                switch (where){
                case 'beforeBegin':
                        this.parentNode.insertBefore(parsedNode,this)
                        break;
                case 'afterBegin':
                        this.insertBefore(parsedNode,this.firstChild);
                        break;
                case 'beforeEnd':
                        this.appendChild(parsedNode);
                        break;
                case 'afterEnd':
                        if (this.nextSibling) this.parentNode.insertBefore(parsedNode,this.nextSibling);
                        else this.parentNode.appendChild(parsedNode);
                        break;
                }
        }

        HTMLElement.prototype.insertAdjacentHTML = function (where,htmlStr)
        {
                var r = this.ownerDocument.createRange();
                r.setStartBefore(this);
                var parsedHTML = r.createContextualFragment(htmlStr);
                this.insertAdjacentElement(where,parsedHTML)
        }


        HTMLElement.prototype.insertAdjacentText = function (where,txtStr)
        {
                var parsedText = document.createTextNode(txtStr)
                this.insertAdjacentElement(where,parsedText)
        }
}

// Body onload utility (supports multiple onload functions)
powl.gSafeOnload = new Array();
powl.SafeAddOnload=function(f) {
	isMac = (navigator.appVersion.indexOf("Mac")!=-1) ? true : false;
	NS4 = (document.layers) ? true : false;
	IEmac = ((document.all)&&(isMac)) ? true : false;
	IE4plus = (document.all) ? true : false;
	IE4 = ((document.all)&&(navigator.appVersion.indexOf("MSIE 4.")!=-1)) ? true : false;
	IE5 = ((document.all)&&(navigator.appVersion.indexOf("MSIE 5.")!=-1)) ? true : false;
	ver4 = (NS4 || IE4plus) ? true : false;
	NS6 = (!document.layers) && (navigator.userAgent.indexOf('Netscape')!=-1)?true:false;

	if (IEmac && IE4) { // IE 4.5 blows out on testing window.onload
		window.onload = powl.SafeOnload;
		powl.gSafeOnload[gSafeOnload.length] = f;
	} else if  (window.onload) {
		if (window.onload != powl.SafeOnload) {
			powl.gSafeOnload[0] = window.onload;
			window.onload = powl.SafeOnload;
		}		
		powl.gSafeOnload[powl.gSafeOnload.length] = f;
	} else
		window.onload = f;
}
powl.SafeOnload=function() {
	for (var i=0;i<powl.gSafeOnload.length;i++)
		powl.gSafeOnload[i]();
}
powl.reloadGET=function() {
	for(var i=0; i<arguments.length; i++) {
		oldURL=arguments[i].location.href;
		newURL=oldURL.indexOf('#')!=-1?oldURL.substr(0,oldURL.indexOf('#')):oldURL;
		arguments[i].location.href=newURL+'?test=test';
	}
}
if(opener && opener.screenX) {
	// resize window
	if(h=powl.getState('WindowSize'+window.name,'Height'))
		window.outerHeight=h;
	if(w=powl.getState('WindowSize'+window.name,'Width'))
		window.outerWidth=w;
	// center window
	var px1 = opener.screenX;
	var px2 = opener.screenX + opener.outerWidth;
	var py1 = opener.screenY;
	var py2 = opener.screenY + opener.outerHeight;
	var x = (px2 - px1 - window.outerWidth) / 2;
	var y = (py2 - py1 - window.outerHeight) / 2;
	window.moveTo(x, y);
	window.focus();
}
window.onresize=function() {
	if(window.outerHeight)
		powl.setState('WindowSize'+window.name,'Height',window.outerHeight);
	if(window.outerWidth)
		powl.setState('WindowSize'+window.name,'Width',window.outerWidth);
};