// JavaScript Document

var isDOM = (document.getElementById ? true : false); 
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);
var isNS67	= ((isDOM && navigator.appName == "Netscape") ? true : false);
var isPrint = ((navigator.platform.charAt(0) == "M") ? false : true);
var isNET = ((navigator.appName == "Netscape") ? true : false);


function openPrint(filename) {
msgWindow=window.open(filename,"print","width=600,height=780,scrollbars=yes,status=no,toolbar=yes,menubar=no");
}
function autoPrint()
	{
	print();
	}
        
function openContribute(filename) 
  {
		msgWindow=window.open(filename,"contributing_new","width=610,height=600,scrollbars=yes,status=yes,toolbar=yes,menubar=no, resizable=yes");
	}

function openRemote(filename) {
msgWindow=window.open(filename,"clinicalTrialsAtHCI","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width=250,height=450,alwaysRaised=yes");
msgWindow.focus();
}

function openBigphoto(filename) {
msgWindow=window.open(filename,"index_gift","width=600,height=700,scrollbars=yes,status=no,toolbar=no,menubar=no");
}

function getRef(id) 
	{
		if (isDOM) return document.getElementById(id);
		if (isIE4) return document.all[id];
		if (isNS4) return document.layers[id];
	}

function getSty(id) 
	{
		return (isNS4 ? getRef(id) : getRef(id).style);
	} 
	
// Hide timeout.
var popTimer = 0;

// Array showing highlighted menu items.
var litNow = new Array();

function popOver(menuNum, itemNum) 
	{
		clearTimeout(popTimer);
		hideAllBut(menuNum);
		litNow = getTree(menuNum, itemNum);
		changeCol(litNow, true);
		targetNum = menu[menuNum][itemNum].target;
		if (targetNum > 0) 
			{
				thisX = parseInt(menu[menuNum][0].ref.left) + parseInt(menu[menuNum][itemNum].ref.left);
				thisY = parseInt(menu[menuNum][0].ref.top) + parseInt(menu[menuNum][itemNum].ref.top);
				with (menu[targetNum][0].ref) 
					{
						left = parseInt(thisX + menu[targetNum][0].x);
						top = parseInt(thisY + menu[targetNum][0].y);
						visibility = 'visible';
					}
			}
	}
	
function popOut(menuNum, itemNum) 
	{
		if ((menuNum == 0) && !menu[menuNum][itemNum].target)
			hideAllBut(0)
		else
			popTimer = setTimeout('hideAllBut(0)', 300);
	}
	
function getTree(menuNum, itemNum) 
	{
		// Array index is the menu number. The contents are null (if that menu is not a parent)
		// or the item number in that menu that is an ancestor (to light it up).
		itemArray = new Array(menu.length);
		while(1) 
			{
				itemArray[menuNum] = itemNum;
				// If we've reached the top of the hierarchy, return.
				if (menuNum == 0) return itemArray;
				itemNum = menu[menuNum][0].parentItem;
				menuNum = menu[menuNum][0].parentMenu;
			}
	}

// Pass an array and a boolean to specify colour change, true = over colour.
function changeCol(changeArray, isOver) 
	{
		for (menuCount = 0; menuCount < changeArray.length; menuCount++) 
			{
				if (changeArray[menuCount]) 
					{
						newCol = isOver ? menu[menuCount][0].overCol : menu[menuCount][0].backCol;
						// Change the colours of the div/layer background.
						with (menu[menuCount][changeArray[menuCount]].ref) 
							{
								if (isNS4) bgColor = newCol;
								else backgroundColor = newCol;
							}
					}
			}
	}
	
function hideAllBut(menuNum) 
	{
		var keepMenus = getTree(menuNum, 1);
		for (count = 0; count < menu.length; count++)
		if (!keepMenus[count])
		menu[count][0].ref.visibility = 'hidden';
		changeCol(litNow, false);
	}

// *** MENU CONSTRUCTION FUNCTIONS ***

function Menu(isVert, popInd, x, y, width, overCol, backCol, borderClass, borderClassAct, textClass) 
	{
		// True or false - a vertical menu?
		this.isVert = isVert;
		// The popout indicator used (if any) for this menu.
		this.popInd = popInd;
		// Position and size settings.
		this.x = x;
		this.y = y;
		this.width = width;
		// Colours of menu and items.
		this.overCol = overCol;
		this.backCol = backCol;
		// The stylesheet class used for item borders and the text within items.
		this.borderClass = borderClass;
		this.borderClassAct = borderClassAct;
		this.textClass = textClass;
		// Parent menu and item numbers, indexed later.
		this.parentMenu = null;
		this.parentItem = null;
		// Reference to the object's style properties (set later).
		this.ref = null;
	}

function Item(text, href, frame, length, spacing, target)
	{
		this.text = text;
		this.href = href;
		this.frame = frame;
		this.length = length;
		this.spacing = spacing;
		this.target = target;
		// Reference to the object's style properties (set later).
		this.ref = null;
	}
var borderClass = "itemBorder";

function writeMenus() 
	{
		//if(document.parent.parentID) var parentID = document.parent.parentID.value;
		if (!isDOM && !isIE4 && !isNS4) return;
		for (currMenu = 0; currMenu < menu.length; currMenu++) with (menu[currMenu][0]) 
			{
				// Variable for holding HTML for items and positions of next item.
				var str = '', itemX = 0, itemY = 0;

				// Remember, items start from 1 in the array (0 is menu object itself, above).
				// Also use properties of each item nested in the other with() for construction.
				for (currItem = 1; currItem < menu[currMenu].length; currItem++) with (menu[currMenu][currItem]) 
					{
						var itemID = 'menu' + currMenu + 'item' + currItem;
						// The width and height of the menu item - dependent on orientation!
						var w = (isVert ? width : length);
							if(isNET && (!isPrint && !isNS4)) w = w - 10;
						var h = (isVert ? length : width);
							if(isNET && (currMenu == 0 || !isNS4)) h = h - 7;
						var borderClass = "itemBorder";
						if (currMenu == 0)
							{
		 					borderClass = "mainBox";
							}
						if (currItem == 1 && currMenu != 0)
							{
							borderClass = "itemBorderTop";
							}
						if (currItem == menu[currMenu].length - 1 && currMenu != 0)
							{
							borderClass = "itemBorderBottom";
							}
							
						var halign = '';
						if (target > 0)
						{
							halign = 'center';
						} else {
							halign = 'left';
						}
						 
						// Create a div or layer text string with appropriate styles/properties.
						if (isDOM || isIE4) 
							{
								str += '<div id="' + itemID + '" style="position: absolute; left: ' + itemX + '; top: ' + itemY + '; width: ' + w + '; height: ' + h + '; visibility: inherit; text-align:' + halign + ';';
								// Add condition to determin active menus  - kf
								if(currMenu == 0 && currItem == parentID)
									{
									//str += 'background: #8fadb4';
									borderClass = "mainBoxAct";
									var	textClass = "mainNavAct";
									}else if (currMenu == 0 && currItem != parentID) var	textClass = "mainNav";
									if (backCol && currMenu != 0) str += 'background: ' + backCol + '; ';
									if(isNS67 && !isPrint) str += 'padding-left:7px';
								str += '"';
							}
						if (isNS4) 
							{
								str += '<layer id="' + itemID + '" left="' + itemX + '" top="' + itemY + '" width="' +  w + '" height="' + h + '" visibility="inherit" ';
								// Add condition to determin active menus  - kf
								if(currMenu == 0 && currItem == parentID)
									{
									str += 'bgcolor="8fadb4"';
									var	textClass = "mainNavNetscape";
									}else if (currMenu == 0 && currItem != parentID) var	textClass = "mainNav"; str += 'bgcolor="' + backCol + '" ';
								if (backCol && currMenu != 0) str += 'bgcolor="' + backCol + '" ';
							}
						if (borderClass) str += 'class="' + borderClass + '"';

						// Add mouseover handlers and finish div/layer.
						if(currMenu != 0 || currItem != parentID)
							{
							str += 'onMouseOver="popOver(' + currMenu + ',' + currItem + ')" onMouseOut="popOut(' + currMenu + ',' + currItem + ')"';
							}
							str += '>';

						// Add contents of item (default: table with link inside).
						// In IE/NS6+, add padding if there's a border to emulate NS4's layer padding.
						// If a target frame is specified, also add that to the <a> tag.
						
						// **** Added by Jason - 7-29-02 ****
						// Decides if the text should be centered or not based on the target value,
						// in other words, only center the main menu items  and leave the others
						// aligned left
						//***** Removed conditional for cell padding ' + (!isNS4 && borderClass ? 3 : 0) + ' *******
						str += '<table width="' + (w - 8) + '" border="0" cellspacing="0" cellpadding="0"><tr><td align="' + halign +'" valign="middle" height="' + (h - 7) + '">' + '<a class="' + textClass + '" href="' + href + '"' + (frame ? ' target="' + frame + '">' : '>') + text + '</a></td>';
						if (target > 0) 
							{
								// Set target's parents to this menu item.
								menu[target][0].parentMenu = currMenu;
								menu[target][0].parentItem = currItem;
								// Add a popout indicator.
								if (popInd) str += '<td class="' + textClass + '" align="right">' + popInd + '</td>';
							}
						str += '</tr></table>' + (isNS4 ? '</layer>' : '</div>');
						if (isVert) itemY += length + spacing;
						else itemX += length + spacing;
					}
				if (isDOM) 
					{
						var newDiv = document.createElement('div');
						document.getElementsByTagName('body').item(0).appendChild(newDiv);
						newDiv.innerHTML = str;
						ref = newDiv.style;
						ref.position = 'absolute';
						ref.visibility = 'hidden';
					}
				// Insert a div tag to the end of the BODY with menu HTML in place for IE4.
				if (isIE4) 
					{
						document.body.insertAdjacentHTML('beforeEnd', '<div id="menu' + currMenu + 'div" ' + 'style="position: absolute; visibility: hidden">' + str + '</div>');
						ref = getSty('menu' + currMenu + 'div');
					}
				// In NS4, create a reference to a new layer and write the items to it.
				if (isNS4) 
					{
						ref = new Layer(0);
						ref.document.write(str);
						ref.document.close();
					}
				for (currItem = 1; currItem < menu[currMenu].length; currItem++) 
					{
						itemName = 'menu' + currMenu + 'item' + currItem;
						if (isDOM || isIE4) menu[currMenu][currItem].ref = getSty(itemName);
						if (isNS4) menu[currMenu][currItem].ref = ref.document[itemName];
				}
			}
		with(menu[0][0]) 
			{
				ref.left = x;
				ref.top = y;
				ref.visibility = 'visible';
		}
	}

function openBigphoto(filename) {
msgWindow=window.open(filename,"index_gift","width=600,height=700,scrollbars=yes,status=no,toolbar=no,menubar=no");
}