/**
* CSShiarchMenu v0.6
*	written by: me[AT]daantje[DOT]nl
*	last update: Sat Nov 26 13:08:45 CET 2005
*
*	Documentation:
*		Build this small script cause all the gpl-ed scripts I found where too big
*		and had too many options I never going to use, or the config for the menu
*		was not easy to set with a PHP routine.
*
*	License:
*		LGPL. (http://www.gnu.org/copyleft/lesser.txt)
*
*	Dontate:
*		Please, when you like my script, click a view banners on
*		http://www.dantje.nl Or use my pay-pal donation button.
*/

//declare
var submenu = new Array();
var tmr = new Array();
var adj = new Array();
var last_zIndex = 10000;
var lastOverId = '';


// EXAMPLE CONFIG
var alignSubmenu 	= 'bottom';		//bottom or right side of the main button.
var useLastItemCSS	= true;			//generate last menu item too
									//if false, it will behave as a normal item
									//and the css menuItemLast class will not be used
var adjustFirst		= false;		//overlap the first submenu too?
var adjustTop		= 0;			//move the submenu's some pixels. Positive number (10) for down, negative (-10) for up.
var adjustLeft		= 0;			//move the submenu's some pixels. Positive number (10) for right, negative (-10) for left.

/*
//fisrt submenu tree
submenu['menu1'] = new Array();
submenu['menu1'][0] = menuItem('my own website','http://www.daantje.nl','_top');
submenu['menu1'][1] = menuItem('other sites');
	submenu['menu1_1'] = new Array();
	submenu['menu1_1'][0] = menuItem('google','http://www.google.nl','demoFrame');
	submenu['menu1_1'][1] = menuItem('/.','http://www.slashdot.org','demoFrame');
	submenu['menu1_1'][2] = menuItem('Open in _BLANK:');
		submenu['menu1_1_2'] = new Array();
		submenu['menu1_1_2'][0] = menuItem('check test','http://www.google.nl','_blank');
		submenu['menu1_1_2'][1] = menuItem('test again','http://www.slashdot.org','_blank');
submenu['menu1'][2] = menuItem('This should be the last one');

//second submenu tree
submenu['menu2'] = new Array();
submenu['menu2'][0] = menuItem('project 1','http://www.daantje.nl','_self');
submenu['menu2'][1] = menuItem('project 2');

//side menu item 1
submenu['menu4'] = new Array();
submenu['menu4'][0] = menuItem('test 1','http://www.daantje.nl','_self');
submenu['menu4'][1] = menuItem('test 2');
	submenu['menu4_1'] = new Array();
	submenu['menu4_1'][0] = menuItem('test 1','http://www.daantje.nl','_self');
	submenu['menu4_1'][1] = menuItem('test 2','http://www.daantje.nl','_self');
	submenu['menu4_1'][2] = menuItem('test 3','http://www.daantje.nl','_self');
*/

// END OF EXAMPLE CONFIG


//build or unhide submenu div...
function buildSubmenu(obj,align){
	lastOverId = obj.id;

	//overrule default alignment of this submenu
	if(!align)
		align = alignSubmenu;

	//get common part of div id
	menuPath = obj.id.split('_');

	//unset mousout of parent menus and make sure they are visible...
	x = "div";
	for(i=0;i<menuPath.length;i++){
		x+= '_' + menuPath[i];
		if(document.getElementById(x)){
			if(tmr[x])
				window.clearTimeout(tmr[x]);
			document.getElementById(x).style.visibility = 'visible';
		}
	}

	//check if we have a submenu of the obj...
	if(submenu[obj.id]){
		//calc position of mouseover
		d = obj;
		if(d){
			L_pos = d.offsetLeft + d.offsetWidth;
			T_pos = d.offsetTop;
			while(d.offsetParent){
				d = d.offsetParent;
				L_pos+= d.offsetLeft;
				T_pos+= d.offsetTop;
			}
		}

		//patch first submenu to go right below the main buttons...
		if(obj.className.indexOf('menuItem') < 0 && align == 'bottom'){
			L_pos-= obj.offsetWidth;
			T_pos+= obj.offsetHeight;
		}

		//move the submenu (overlap?)
		if((adjustTop || adjustLeft) && (adjustFirst || (!adjustFirst && obj.className.indexOf('menuItem') >= 0))){
			L_pos+= adjustLeft;
			T_pos+= adjustTop;
		}

		//Only parse when position is higher than 0,0... Else we dont have the right position!
		if(L_pos > 0 && T_pos >0){
			//check if allready build...
			c = document.getElementById('div_' + obj.id);
			if(c){
				//unhide...
				c.style.visibility = 'visible';
				c.style.zIndex = last_zIndex++;

				//hard replace
				c.style.top = (T_pos - 1) + "px";
				c.style.left = (L_pos - 1) + "px";
			}else{
				//build new div
				subObj = document.createElement('div');
				subObj.id = 'div_' + obj.id;
				subObj.className = 'submenu';
				subObj.style.position = 'absolute';
				subObj.style.zIndex = last_zIndex++;
				subObj.style.top = (T_pos - 1) + "px";
				subObj.style.left = (L_pos - 1) + "px";

				//write div to the body...
				document.getElementsByTagName('body')[0].appendChild(subObj);

				//build html for submenu
				content = "";
				m = submenu[obj.id];
				for(i=0;i<m.length;i++){

					//determin target for onclick...
					//	(sorry, I should rewrite this routine...)
					if(m[i][1]){
						if(m[i][1].substring(0,11) == 'javascript:'){
							act = m[i][1].substring(11);
						}else{
							if(!m[i][2] || m[i][2] == '_self')
								act = "self.location.href='" + m[i][1] + "';";
							else if(m[i][2] == '_top')
								act = "top.location.href='" + m[i][1] + "';";
							else if(m[i][2] == '_parent')
								act = "parent.location.href='" + m[i][1] + "';";
							else if(m[i][2] == '_blank')
								act = "window.open('" + m[i][1] + "');";
							else
								act = "window.frames['"+m[i][2]+"'].location.href='" + m[i][1] + "';";
						}
					}

					//make item
					content+= "<div onmouseout=\"hideSubmenu(this)\" onmouseover=\"buildSubmenu(this)\" "+ (m[i][1] ? "onclick=\""+ act + "\" " : "") +"class=menuItem" + (i==0 ? 'First' : (i==(m.length -1) && useLastItemCSS ? 'Last' : '')) + " id=\"" + obj.id + "_" + i +"\">" + m[i][0] + "</div>";
					adj[i] = obj.id + "_" + i;
				}

				//insert new menu
				subObj.innerHTML = content;
			}
		}
	}
}

//hide a submebu div
function hideSubmenu(obj){
	//get common part of div id
	closePath = obj.id.split('_');

	//hide path
	x = "div";
	for(i=0;i<closePath.length;i++){
		x+= '_' + closePath[i];
		if(document.getElementById(x))
			tmr[x] = window.setTimeout("document.getElementById('"+x+"').style.visibility = 'hidden';",150);
		//The timeout above is needed for MSIE browsers... Or else the menu's will disapear on EVERY mousout!!!
		//Please get a normal browser like Firefox, Mozilla or Opera!!
	}
}

//add an menu item to the config array (called in the config lines)
function menuItem(txt,url,tar){
	return new Array(txt,url,tar);
}

//change div's on mouse over and out...
document.onmouseover = function(e){
	obj = document.all ? event.srcElement : e.target;
	if(obj.className == 'menuItemFirst' || obj.className == 'menuItem' || obj.className == 'menuItemLast')
		obj.className+='Over';
}
document.onmouseout = function(e){
	obj = document.all ? event.srcElement : e.target;
	if(obj.className == 'menuItemFirstOver' || obj.className == 'menuItemOver' || obj.className == 'menuItemLastOver')
		obj.className = obj.className.substring(0,(obj.className.length - 4));
}

//*** Patch for firefox bug with focus on mouseover...
//		This function should be called onMouseOver of every iFrame that's under the menu structure.
function iFramePatch(){
	if(!document.all && lastOverId)
		hideSubmenu(document.getElementById(lastOverId));
}

