ÿþvar requireClick=false;

var menuShadowEnabled=true;

var menuShadowSize=4;

var menuShadowOffset=1;

var isIE=(document.all!=null&&window.opera==null);

var isOpera=(window.opera!=null);

var isMozilla=(window.scrollX!=null);

var activeButton=null;

var clickEventType;



// sreen resize

var screen_y;

var maxx = 960;

var maxy = 500;



// backend student logout hover IE fix

function hov(loc,cls) { 

	  if(loc.className) 

	    loc.className=cls; 

} 



// student iframe login reload

function load_forum(user,pass)

{

		var details = document.getElementById("contents");

		var tempdetails = details.src;

		details.src = tempdetails;

		//details.src = "http://192.170.0.10/addons/forum/regent_home.forum.php?user=" + user +"&pass=" + pass;

}



/* gets url rendered by tx_regentcalendar plugin, refresh the iframe with it*/

function load_calendar()

{

		var details = document.getElementById("contents");

		var tempdetails = details.src;

		details.src = tempdetails;

}





function xDocSize()

{

  var b=document.body, e=document.documentElement;

  var esw=0, eow=0, bsw=0, bow=0, esh=0, eoh=0, bsh=0, boh=0;

  if (e) {

    esw = e.scrollWidth;

    eow = e.offsetWidth;

    esh = e.scrollHeight;

    eoh = e.offsetHeight;

  }

  if (b) {

    bsw = b.scrollWidth;

    bow = b.offsetWidth;

    bsh = b.scrollHeight;

    boh = b.offsetHeight;

  }

  // alert('compatMode: ' + document.compatMode + '\n\ndocumentElement.scrollHeight: ' + esh + '\ndocumentElement.offsetHeight: ' + eoh + '\nbody.scrollHeight: ' + bsh + '\nbody.offsetHeight: ' + boh + '\n\ndocumentElement.scrollWidth: ' + esw + '\ndocumentElement.offsetWidth: ' + eow + '\nbody.scrollWidth: ' + bsw + '\nbody.offsetWidth: ' + bow);

  

  maxx = Math.max(esw,eow,bsw,bow);

  maxy = Math.max(esh,eoh,bsh,boh);

}





function resize_screen(offset)

{

 //	document.body.style.overflow='hidden';

	// viewable screen area 

	// Note for IE + 4px

	screen_y = document.body.clientHeight;



	xDocSize();



	if(maxy==screen_y+4 || maxy==screen_y){

	document.getElementById("main-content-holder").style.height = (screen_y-offset) +"px" ;

	//alert("maxy a:"+maxy);

    //alert("screen_y a:"+screen_y);



	}

}



if(isIE){

	  document.documentElement.attachEvent("onfocusin",pageFocus);

	  document.documentElement.attachEvent("onkeydown",pageKeydown);

	  document.documentElement.attachEvent("onmousedown",pageMousedown);

	  window.attachEvent("unload",windowUnload);

	}else{

		document.documentElement.addEventListener("focus",pageFocus,true);

		document.documentElement.addEventListener("keydown",pageKeydown,true);

		document.documentElement.addEventListener("mousedown",pageMousedown,true);

		window.addEventListener("unload",windowUnload,true);

	}

		

function pageFocus(event){

	

	var el=(isIE?window.event.srcElement:(event.target.tagName?event.target:event.target.parentNode));

	

	if(activeButton==null)return;

	if(el==activeButton)return;

	if(getContainerWith(el,"TD","menuButton")==null&&getContainerWith(el,"DIV","menu")==null)clearActiveButton();



}

	

function pageKeydown(event){

	

	clickEventType=(isIE?window.event.type:event.type);



}

	

function pageMousedown(event){



	clickEventType=(isIE?window.event.type:event.type);

	pageFocus(event);



}



function windowUnload(event){

	

	clearActiveButton();



}



function setActiveButton(button){

	

	if(button==activeButton)return;

	clearActiveButton();

	if(button.menu==null)return;

	addClassName(button,"menuButtonActive");

	var pt=getPageOffset(button);

	pt.y+=button.offsetHeight;

	menuOpen(button.menu,pt);

	activeButton=button;

}



function clearActiveButton(){

	

	if(activeButton==null)return;

	removeClassName(activeButton,"menuButtonActive");

	if(activeButton.menu!=null)menuClose(activeButton.menu);

	activeButton=null;

}



function buttonClick(event,menuId){

	

	var button=getButton(event,menuId);

	

	if(clickEventType=="mousedown"){

		if(isIE)document.documentElement.detachEvent("onfocusin",pageFocus);

		button.blur();

		if(isIE)document.documentElement.attachEvent("onfocusin",pageFocus);

		}

	

	if(button==activeButton)clearActiveButton();

	  else setActiveButton(button);

	  return false;

}



function buttonFocusOrMouseover(event,menuId){

	

	var button=getButton(event,menuId);

	if(!requireClick)setActiveButton(button);

	else if(activeButton!=null&&button!=activeButton)setActiveButton(button);



}



function buttonKeydown(event){



	var keyCode=(isIE?window.event.keyCode:event.keyCode);

	if(keyCode<37||keyCode>40)return;

	var button=getButton(event,null);

	if(keyCode==37)button.leftTarget.focus();

	if(keyCode==39)button.rightTarget.focus();

	if(button.menu!=null&&(keyCode==38||keyCode==40)){

		setActiveButton(button);

		if(keyCode==38)button.upTarget.focus();

		if(keyCode==40)button.downTarget.focus();

		}

		return false;

}



function getButton(event,menuId){

	

	var button=(isIE?getContainerWith(window.event.srcElement,"TD","menuButton"):event.currentTarget);

	if(button.parentBar==null){

		button.parentBar=getContainerWith(button,"TABLE","menuBar");

		if(button.parentBar.buttons==null)button.parentBar.buttons=getContaineesWith(button.parentBar,"TD","menuButton");

		var i=0;

		while(button.parentBar.buttons[i]!=button)i++;

		var n=button.parentBar.buttons.length;button.leftTarget=(i==0?button.parentBar.buttons[n-1]:button.parentBar.buttons[i-1]);

		button.rightTarget=(i==n-1?button.parentBar.buttons[0]:button.parentBar.buttons[i+1]);

		if(menuId!=null){

			button.menu=document.getElementById(menuId);

			button.menu.parentButton=button;

			menuInitialize(button.menu);

			button.upTarget=button.menu.items[button.menu.items.length-1];

			button.downTarget=button.menu.items[0];

			}

		if(!requireClick)button.onmouseout=buttonOrMenuMouseout;

		if(!isOpera)button.onkeydown=buttonKeydown;

		if(isMozilla)button.onkeypress=buttonOrMenuItemKeypress;

		}

		return button;

}



function menuInitialize(menu){

	

	menu.items=getContaineesWith(menu,"A","menuItem");

	var n=menu.items.length;

	var itemWidth;

	if(n>0)itemWidth=menu.items[0].offsetWidth;

	else return;

	if(isIE&&window.XMLHttpRequest==null){

		var iframeEl=document.createElement("IFRAME");

		iframeEl.frameBorder=0;

		iframeEl.src="javascript:void(0);";

		iframeEl.style.display="none";

		iframeEl.style.position="absolute";

		iframeEl.style.filter="progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)";

		menu.iframeEl=menu.parentNode.insertBefore(iframeEl,menu);



}



for(var i=0;i<n;i++){



menu.items[i].upTarget=(i==0?menu.items[n-1]:menu.items[i-1]);

menu.items[i].downTarget=(i==n-1?menu.items[0]:menu.items[i+1]);

menu.items[i].leftTarget=(menu.parentItem!=null?menu.parentItem:menu.parentButton.leftTarget);

menu.items[i].rightTarget=menu.parentButton.rightTarget;

var spanList=menu.items[i].getElementsByTagName("SPAN");

var textEl=null;var arrowEl=null;



for(var j=0;j<spanList.length;j++){

if(hasClassName(spanList[j],"menuItemText"))textEl=spanList[j];

if(hasClassName(spanList[j],"menuItemArrow"))arrowEl=spanList[j];

}



if(textEl!=null&&arrowEl!=null){

	textEl.style.paddingRight=(itemWidth-(textEl.offsetWidth+arrowEl.offsetWidth))+"px";



if(isIE){

	arrowEl.style.fontFamily="Webdings";

	arrowEl.style.fontSize="100%";

	arrowEl.firstChild.nodeValue="4";

	}



if(isOpera){

	arrowEl.firstChild.nodeValue="\u25B6";

	arrowEl.style.marginRight="0em";

	}

}

else{

	menu.items[i].onfocus=menuItemFocusOrMouseover;

	menu.items[i].onmouseover=menuItemFocusOrMouseover;

}



if(!isOpera)menu.items[i].onkeydown=menuItemKeydown;

if(isMozilla)menu.items[i].onkeypress=buttonOrMenuItemKeypress;



}



if(isIE){

	var w=menu.items[0].offsetWidth;

	menu.items[0].style.width=w+"px";

	var dw=menu.items[0].offsetWidth-w;

	w-=dw;menu.items[0].style.width=w+"px";

	}



if(menuShadowEnabled){

	menu.shadowDivEls=new Array();

	for(i=0;i<menuShadowSize;i++){

		var divEl=document.createElement("DIV");

		divEl.className="menuShadow";

		if(!requireClick)divEl.onmouseout=buttonOrMenuMouseout;

		menu.shadowDivEls[i]=menu.parentNode.insertBefore(divEl,menu);

		}

	}

	

	menu.onmouseover=menuMouseover;

	if(!requireClick)menu.onmouseout=buttonOrMenuMouseout;

	menu.isOpen=false;

}

	

function menuOpen(menu,pt){

	menu.style.left=pt.x-2+"px"; // allow 2px for button spacer

	menu.style.top=pt.y+"px";

	menu.style.visibility="visible";

	if(menu.iframeEl!=null){

		menu.iframeEl.style.left=menu.style.left;

		menu.iframeEl.style.top=menu.style.top;

		menu.iframeEl.style.width=menu.offsetWidth+(menuShadowEnabled?menuShadowOffset+menuShadowSize-1:0)+"px";

		menu.iframeEl.style.height=menu.offsetHeight+(menuShadowEnabled?menuShadowOffset+menuShadowSize-1:0)+"px";

		menu.iframeEl.style.display="";

		}

	if(menuShadowEnabled){

		for(var i=0;i<menuShadowSize;i++){

			menu.shadowDivEls[i].style.left=(pt.x+menuShadowOffset+i)+"px";

			menu.shadowDivEls[i].style.top=(pt.y+menuShadowOffset+i)+"px";

			menu.shadowDivEls[i].style.width=menu.offsetWidth+"px";

			menu.shadowDivEls[i].style.height=menu.offsetHeight+"px";

			menu.shadowDivEls[i].style.visibility="visible";

			}

	 }

	 menu.isOpen=true;

}



function menuClose(menu){

	

	menuClearActiveItem(menu);

	if(menuShadowEnabled)

	for(var i=0;i<menuShadowSize;i++)menu.shadowDivEls[i].style.visibility="";

	menu.style.visibility="";

	if(menu.iframeEl!=null)menu.iframeEl.style.display="none";

	menu.isOpen=false;



}



function menuSetActiveItem(item){

	

	if(!item.parentMenu.isOpen)return;

	menuClearActiveItem(item.parentMenu);

	addClassName(item,"menuItemActive");

	item.parentMenu.activeItem=item;

	if(item.subMenu==null||item.suppressSubMenu!=null){

		item.suppressSubMenu=null;

		return;

  }

  

  var pt=getPageOffset(item);

  pt.x+=item.offsetWidth;

  if(isIE)pt.y-=item.subMenu.clientTop;

  var maxX,maxY;if(isIE){

  	maxX=Math.max(document.documentElement.scrollLeft,document.body.scrollLeft)+(document.documentElement.clientWidth!=0?document.documentElement.clientWidth:document.body.clientWidth);

  	maxY=Math.max(document.documentElement.scrollTop,document.body.scrollTop)+(document.documentElement.clientHeight!=0?document.documentElement.clientHeight:document.body.clientHeight);

  }

  

  if(isOpera){

  	maxX=document.documentElement.scrollLeft+window.innerWidth;maxY=document.documentElement.scrollTop+window.innerHeight;

  }

  

  if(isMozilla){

  	maxX=window.scrollX+window.innerWidth;maxY=window.scrollY+window.innerHeight;

  }

  

  maxX-=item.subMenu.offsetWidth;

  maxY-=item.subMenu.offsetHeight;

  if(pt.x>maxX){

  	pt.x=Math.max(0,pt.x-item.offsetWidth-item.subMenu.offsetWidth+(item.parentMenu.offsetWidth-item.offsetWidth));

  	if(isIE)pt.x-=item.subMenu.clientLeft+item.parentMenu.clientLeft;

  }

  

  pt.y=Math.max(0,Math.min(pt.y,maxY));

  menuOpen(item.subMenu,pt);

 }

 

 function menuClearActiveItem(menu){

 	

 	if(menu.activeItem==null)return;

 	removeClassName(menu.activeItem,"menuItemActive");

 	if(menu.activeItem.subMenu!=null)menuClose(menu.activeItem.subMenu);

 	menu.activeItem=null;

}



function menuMouseover(event){



	var menu=(isIE?getContainerWith(window.event.srcElement,"DIV","menu"):event.currentTarget);

	menuClearActiveItem(menu);



}



function menuItemClick(event,menuId){

	

	var item=getMenuItem(event,menuId);

	if(clickEventType=="keydown"&&item.subMenu.isOpen)item.suppressSubMenu=true;

	menuSetActiveItem(item);return false;

}



function menuItemFocusOrMouseover(event,menuId){

	

	var item=getMenuItem(event,menuId);

	menuSetActiveItem(item);

	if(isIE)window.event.cancelBubble=true;

	else event.stopPropagation();

}



function menuItemKeydown(event){

	

	var keyCode=(isIE?window.event.keyCode:event.keyCode);

	if(keyCode<37||keyCode>40)return;

	var item=getMenuItem(event,null);

	

	if(keyCode==37){

		if(item.leftTarget.subMenu!=null)item.leftTarget.suppressSubMenu=true;

		item.leftTarget.focus();

	}

	

	if(keyCode==39){

		if(item.subMenu!=null)menuSetActiveItem(item);

		item.rightTarget.focus();

	}

	

	if(keyCode==38)item.upTarget.focus();

	if(keyCode==40)item.downTarget.focus();

	return false;

}



function getMenuItem(event,menuId){

	

	var item=(isIE?getContainerWith(window.event.srcElement,"A","menuItem"):event.currentTarget);

	if(item.parentMenu==null){

		item.parentMenu=getContainerWith(item,"DIV","menu");

		if(menuId!=null&&item.subMenu==null){

			item.subMenu=document.getElementById(menuId);

			item.subMenu.parentButton=item.parentMenu.parentButton;

			item.subMenu.parentItem=item;menuInitialize(item.subMenu);

			item.rightTarget=item.subMenu.items[0];

			}

	}

	return item;

}

 		

function buttonOrMenuMouseout(event){

	

	if(activeButton==null)return;

	var el;

	if(isIE)el=window.event.toElement;

	else 

	if(event.relatedTarget!=null)el=(event.relatedTarget.tagName?event.relatedTarget:event.relatedTarget.parentNode);

	if(getContainerWith(el,"DIV","menu")==null&&getContainerWith(el,"DIV","menuShadow")==null)clearActiveButton();



}



function buttonOrMenuItemKeypress(event){

	

	if(event.keyCode<37||event.keyCode>40)return;event.preventDefault();



}



function getContainerWith(node,tagName,className){

	

	while(node!=null){if(node.tagName!=null&&node.tagName==tagName&&hasClassName(node,className))return node;

		node=node.parentNode;}return node;



}



function getContaineesWith(node,tagName,className){

	

	var elList=node.getElementsByTagName(tagName);

	var returnList=new Array();

	for(var i=0;i<elList.length;i++)if(hasClassName(elList[i],className))returnList.push(elList[i]);

	return returnList;

} 



function hasClassName(el,name){

	

	var list=el.className.split(" ");

	for(var i=0;i<list.length;i++)if(list[i]==name)

	return true;

	return false;



}



function addClassName(el,name){

	

	if(!hasClassName(el,name))el.className+=(el.className.length>0?" ":"")+name;

	

}



function removeClassName(el,name){

	

	if(el.className==null)return;

	var newList=new Array();

	var curList=el.className.split(" ");

	for(var i=0;i<curList.length;i++)if(curList[i]!=name)newList.push(curList[i]);

	el.className=newList.join(" ");

}



function getPageOffset(el){

	

	var x=0,y=0,xOffset=0,yOffest=0;

	if(isIE){

	

	var tempEl=el;

	while(tempEl!=null&&tempEl.tagName!=null){

		if(tempEl.tagName!="BODY"&&tempEl.tagName!="HTML"&&tempEl.tagName!="TABLE"){

			x+=tempEl.clientLeft;

			y+=tempEl.clientTop;

		}

	tempEl=tempEl.parentNode;

	}

 }

 do{ if(el.id=="menuh-container") yOffset = el.offsetTop; // patch for div layout absolute offset

     if(el.id=="menuh") xOffset = el.offsetLeft; // patch for div layout absolute offset

	 x+=el.offsetLeft;

 	 y+=el.offsetTop;

	 el=el.offsetParent;

	}

 while(el!=null);

 return new Point(x-xOffset,y-yOffset);

}

function Point(x,y){

	

	this.x=x;this.y=y;



}