//Drop Down/ Overlapping Content: http://www.dynamicdrive.com
//**Updated: Dec 19th, 07': Added ability to dynamically populate a Drop Down content using an external file (Ajax feature)
//**Updated: Feb 29th, 08':
				//1) Added ability to reveal drop down content via "click" of anchor link (instead of default "mouseover")
				//2) Added ability to disable drop down content from auto hiding when mouse rolls out of it
				//3) Added hidediv(id) public function to directly hide drop down div dynamically
				
//-------------------------------------------------------		
//-------------------------------------------------------		
//-------------------------------------------------------		
 function __getPageSize() {
            var xScroll, yScroll;
            if (window.innerHeight && window.scrollMaxY) {
                xScroll = window.innerWidth + window.scrollMaxX;
                yScroll = window.innerHeight + window.scrollMaxY;
            } else if (document.body.scrollHeight > document.body.offsetHeight) { // all but Explorer Mac
                xScroll = document.body.scrollWidth;
                yScroll = document.body.scrollHeight;
            } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
                xScroll = document.body.offsetWidth;
                yScroll = document.body.offsetHeight;
            }
            var windowWidth, windowHeight;
            if (self.innerHeight) {	// all except Explorer
                if (document.documentElement.clientWidth) {
                    windowWidth = document.documentElement.clientWidth;
                } else {
                    windowWidth = self.innerWidth;
                }
                windowHeight = self.innerHeight;
            } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
                windowWidth = document.documentElement.clientWidth;
                windowHeight = document.documentElement.clientHeight;
            } else if (document.body) { // other Explorers
                windowWidth = document.body.clientWidth;
                windowHeight = document.body.clientHeight;
            }
            // for small pages with total height less then height of the viewport
            if (yScroll < windowHeight) {
                pageHeight = windowHeight;
            } else {
                pageHeight = yScroll;
            }
            // for small pages with total width less then width of the viewport
            if (xScroll < windowWidth) {
                pageWidth = xScroll;
            } else {
                pageWidth = windowWidth;
            }
            arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight);
            return arrayPageSize;
        };
//-------------------------------------------------------		
//-------------------------------------------------------		
//-------------------------------------------------------		

var dropdowncontent={
	disableanchorlink: true, //when user clicks on anchor link, should link itself be disabled (always true if "revealbehavior" above set to "click")
 hidedivmouseout: [false, 200], //Set hiding behavior within Drop Down DIV itself: [hide_div_onmouseover?, miliseconds_before_hiding]
	//ajaxloadingmsg: "Loading content. Please wait...", //HTML to show while ajax page is being feched, if applicable
	ajaxloadingmsg: "<div style=\"margin-top:150px;margin-left:5px;margin-right:5px;margin-bottom:5px; direction=rtl\" align=center valign=middle>لطفا چند لحظه صبر کنید. . . <br><br><img src=\"../../img/loader4.gif\"  ></div>",
	ajaxbustcache: true, //Bust cache when fetching Ajax pages?

	getposOffset:function(what, offsettype){
		return (what.offsetParent)? what[offsettype]+this.getposOffset(what.offsetParent, offsettype) : what[offsettype]
	},

	isContained:function(m, e){
		var e=window.event || e
		var c=e.relatedTarget || ((e.type=="mouseover")? e.fromElement : e.toElement)
		while (c && c!=m)try {c=c.parentNode} catch(e){c=m}
		if (c==m)
			return true
		else
			return false
	},

	show:function(anchorobj, subobj, e){
		//------------------
		 var arrPageSizes = __getPageSize();
		$('#div-overlay').css({
                backgroundColor: '#000',
                opacity: 0.8,
                width: arrPageSizes[0],
                height: arrPageSizes[1],
				visibility : 'visible'
            }).fadeIn();
		//--------------------------
		if (!this.isContained(anchorobj, e) || (e && e.type=="click")){
			var e=window.event || e
			if (e.type=="click" && subobj.style.visibility=="visible"){
				subobj.style.visibility="hidden"
				return
			}
			var horizontaloffset=(subobj.dropposition[0]=="left")? -(subobj.offsetWidth-anchorobj.offsetWidth) : anchorobj.offsetWidth //calculate user added horizontal offset
			var verticaloffset=(subobj.dropposition[1]=="top")? -subobj.offsetHeight : anchorobj.offsetHeight-30 //calculate user added vertical offset
			subobj.style.left=this.getposOffset(anchorobj, "offsetLeft") + horizontaloffset + "px"
			subobj.style.top=this.getposOffset(anchorobj, "offsetTop")+verticaloffset+"px"
			subobj.style.clip=(subobj.dropposition[1]=="top")? "rect(auto auto auto 0)" : "rect(0 auto 0 0)" //hide drop down box initially via clipping
			subobj.style.visibility="visible"
			subobj.startTime=new Date().getTime()
			subobj.contentheight=parseInt(subobj.offsetHeight)
			if (typeof window["hidetimer_"+subobj.id]!="undefined") //clear timer that hides drop down box?
				clearTimeout(window["hidetimer_"+subobj.id])
			this.slideengine(subobj, (subobj.dropposition[1]=="top")? "up" : "down")
			
			//--------- added by aazam
			var is_ie6 = document.all && (navigator.userAgent.toLowerCase().indexOf("msie 6.") != -1);
        if (is_ie6)
        {
		

	//		document.getElementById('Message_Type').
		}
					
		if (subobj.id=='NLRegister_Box_Subcontent')
		{
		subobj.style.left=this.getposOffset(anchorobj, "offsetLeft") + horizontaloffset+140 + "px";			
		Set_Content('get','process.php','Pn=NewsLetter&mode=NLRegisterForm',true,'NLRegister_Box_Subcontent');
		}
		
		if (subobj.id=='Message_Box_Subcontent')
		{
		  Set_Content('get','process.php','Pn=GusetBookForm&mode=GusetBookForm',true,'Message_Box_Subcontent');
		}
		
		if (subobj.id=='Contact_Box_Subcontent')
		{
		  Set_Content('get','process.php','Pn=ContactUs&mode=ContactUsForm',true,'Contact_Box_Subcontent');
		}
			

      }
	},

	curveincrement:function(percent){
		return (1-Math.cos(percent*Math.PI)) / 2 //return cos curve based value from a percentage input
	},

	slideengine:function(obj, direction){
		var elapsed=new Date().getTime()-obj.startTime //get time animation has run
		if (elapsed<obj.glidetime){ //if time run is less than specified length
			var distancepercent=(direction=="down")? this.curveincrement(elapsed/obj.glidetime) : 1-this.curveincrement(elapsed/obj.glidetime)
			var currentclip=(distancepercent*obj.contentheight)+"px"
			obj.style.clip=(direction=="down")? "rect(0 auto "+currentclip+" 0)" : "rect("+currentclip+" auto auto 0)"
			window["glidetimer_"+obj.id]=setTimeout(function(){dropdowncontent.slideengine(obj, direction)}, 10)
		}
		else{ //if animation finished
			obj.style.clip="rect(0 auto auto 0)"
		}
	},

	hide:function(activeobj, subobj, e){
		
		
		if (!dropdowncontent.isContained(activeobj, e)){
			window["hidetimer_"+subobj.id]=setTimeout(function(){
				subobj.style.visibility="hidden"
				subobj.style.left=subobj.style.top=0
				clearTimeout(window["glidetimer_"+subobj.id])
			}, dropdowncontent.hidedivmouseout[1])
		}
	},

	hidediv:function(subobjid){
		$('#div-overlay').fadeOut();
		document.getElementById(subobjid).style.visibility="hidden"
	},

	ajaxconnect:function(pageurl, divId){
		

var page_request = false
		var bustcacheparameter=""
		if (window.XMLHttpRequest) // if Mozilla, IE7, Safari etc
			page_request = new XMLHttpRequest()
		else if (window.ActiveXObject){ // if IE6 or below
			try {
			page_request = new ActiveXObject("Msxml2.XMLHTTP")
			} 
			catch (e){
				try{
				page_request = new ActiveXObject("Microsoft.XMLHTTP")
				}
				catch (e){}
			}
		}
		else
			return false
			
		document.getElementById(divId).innerHTML=this.ajaxloadingmsg //Display "fetching page message"
		page_request.onreadystatechange=function(){dropdowncontent.loadpage(page_request, divId)}
		
		if (this.ajaxbustcache) //if bust caching of external page
			bustcacheparameter=(pageurl.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
		    page_request.open('GET', pageurl+bustcacheparameter, true)
		    page_request.send(null)
	},

	loadpage:function(page_request, divId){
		if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1)){
			document.getElementById(divId).innerHTML=page_request.responseText;
			
			if (divId=='subcontent')show_selected_recepient(document.getElementById('members_in_page').value);
			if (divId=='teamsubcontent')show_selected_recepient(document.getElementById('team_in_page').value);
			if (divId=='myteamsubcontent')show_selected_recepient(document.getElementById('myteam_in_page').value);
			
		}
	},

init:function(anchorid, pos, glidetime, revealbehavior)
{
	//alert('ff')
	var anchorobj=document.getElementById(anchorid)
	var subobj=document.getElementById(anchorobj.getAttribute("rel"))
	var subobjsource=anchorobj.getAttribute("rev")
	if (subobjsource!=null && subobjsource!="")
	this.ajaxconnect(subobjsource, anchorobj.getAttribute("rel"))
	
	subobj.dropposition=pos.split("-")
	
	subobj.glidetime=glidetime || 1000
	subobj.style.left=subobj.style.top=0
	
	if (typeof revealbehavior=="undefined" || revealbehavior=="mouseover")
	{
		anchorobj.onmouseover=function(e){dropdowncontent.show(this, subobj, e)}
		anchorobj.onmouseout=function(e){dropdowncontent.hide(subobj, subobj, e)}
		if (this.disableanchorlink) anchorobj.onclick=function(){return false}
	}
	else	anchorobj.onclick=function(e){dropdowncontent.show(this, subobj, e); return false}
	if (this.hidedivmouseout[0]==true) //hide drop down DIV when mouse rolls out of it?
	subobj.onmouseout=function(e){dropdowncontent.hide(this, subobj, e)}
}

}