var dom = (document.getElementById) ? true : false;
var ns5 = (!document.all && dom || window.opera) ? true: false;
var ie5 = ((navigator.userAgent.indexOf("MSIE")>-1) && dom) ? true : false;
var ie4 = (document.all && !dom) ? true : false;
var nodyn = (!ns5 && !ie4 && !ie5 && !dom) ? true : false;

var origWidth, origHeight;

// avoid error of passing event object in older browsers
if (nodyn) { event = "nope" }

///////////////////////  CUSTOMIZE HERE   ////////////////////
// settings for tooltip 
// Do you want tip to move when mouse moves over link?
var tipFollowMouse= true;	
// Be sure to set tipWidth wide enough for widest image
var tipWidth= 517;
var offX= 20;	// how far from mouse to show tip
var offY= 12; 
var tipFontFamily= "verdana";
var tipFontSize= "10px";
// set default text color and background color for tooltip here
// individual tooltips can have their own (set in messages arrays)
// but don't have to
var tipFontColor= "#414040";
var tipBgColor= "#D6C1A9"; 
var tipBorderColor= "#8e8c8c";
var tipBorderWidth= 1;
var tipBorderStyle= "ridge";
var tipPadding= 4;

// tooltip content goes here (image, description, optional bgColor, optional textcolor)
var messages = new Array();
// multi-dimensional arrays containing: 
// image and text for tooltip
// optional: bgColor and color to be sent to tooltip
messages[0] = new Array('images/v-cord-larger.jpg','A sagittal section through the head and neck reveals the structure of the pharynx and larynx.',"#FFFFFF");
messages[1] = new Array('images/v-cord-larger02.jpg','Vocal Cord',"#FFFFFF");
messages[2] = new Array('images/v-cord-larger03.jpg','Vocal Cord',"#FFFFFF");
messages[3] = new Array('images/v-cord-larger04.jpg','Vocal Cord',"#FFFFFF");
messages[4] = new Array('images/Bowling-Green-certificate.jpg','Recognition from Bowling Green State University Ohio, USA',"#FFFFFF");
messages[5] = new Array('images/parampara-full01.jpg','West Bengal Bangla Academy',"#FFFFFF");
messages[6] = new Array('images/parampara-full02.jpg','Guru Shisya Parampara 2008 at Birla Sabhaghar',"#FFFFFF");
messages[7] = new Array('images/parampara-full03.jpg','Guru Shisya Parampara 2008 at Birla Sabhaghar',"#FFFFFF");
messages[8] = new Array('images/parampara-full04.jpg','Parampara Bishnupur',"#FFFFFF");
messages[9] = new Array('images/parampara-full05.jpg','Parampara Bishnupur',"#FFFFFF");
messages[10] = new Array('images/parampara-full06.jpg','Guru Shisya Parampara 2008 at Birla Sabhaghar',"#FFFFFF");
messages[11] = new Array('images/parampara-full07.jpg','Parampara Bishnupur',"#FFFFFF");
messages[12] = new Array('images/ear-full01.jpg','Improvement of  hearing  is one of the most important factor for better singing. Here is a picture of Ear, how it works.',"#FFFFFF");
messages[13] = new Array('images/ear_cell_full.jpg','Scanning electron micrographs showing a sensory hair cell and a hair bundle',"#FFFFFF");
messages[14] = new Array('images/child_hood_full.jpg','Satyakinkar at age of 10.',"#FFFFFF");
messages[15] = new Array('images/child_hood02_full.jpg','Satyakinkar with Banjo.',"#FFFFFF");
messages[16] = new Array('images/child_hood03_full.jpg','Santyakinkar as a vocalist.',"#FFFFFF");
messages[17] = new Array('images/child_hood04_full.jpg','Acharya Satyakinkar.',"#FFFFFF");
messages[18] = new Array('images/child_hood06_full.jpg','Smt.Gouri Bandyopadhyay, Wife of Acharya Satyakinkar Bandyopadhyay.',"#FFFFFF");
messages[19] = new Array('images/tanpura_full.jpg','Tanpura used by Acharya Satyakinkar Bandyopadhyay.',"#FFFFFF");
messages[20] = new Array('images/book01_full.jpg','Book written by Acharya Satyakinkar Bandyopadhyay.',"#FFFFFF");
messages[21] = new Array('images/book02_full.jpg','Book written by Acharya Satyakinkar Bandyopadhyay.',"#FFFFFF");
messages[22] = new Array('images/book03_full.jpg','Book written by Acharya Satyakinkar Bandyopadhyay.',"#FFFFFF");
messages[23] = new Array('images/book04_full.jpg','Book written by Acharya Satyakinkar Bandyopadhyay.',"#FFFFFF");
messages[24] = new Array('images/book05_full.jpg','Book written by Acharya Satyakinkar Bandyopadhyay.',"#FFFFFF");
messages[25] = new Array('images/book06_full.jpg','CD of Acharya Satyakinkar Bandyopadhyay.',"#FFFFFF");
messages[26] = new Array('images/book07_full.jpg','Cartoon on Acharya Satyakinkar Bandyopadhyay.',"#FFFFFF");
messages[27] = new Array('images/book08_full.jpg','Letter of offer from All Indian Radio.',"#FFFFFF");
messages[28] = new Array('images/vocal_cord_full.jpg','larynx.',"#FFFFFF");
messages[29] = new Array('images/khestra_full.jpg','Khestra Mohan Goswami.',"#FFFFFF");
messages[30] = new Array('images/rare_pic_full.jpg','Last row from left, Ramshankar Bandyopadhyay, Shyamlal Dutta, Satyakinkar Bandyopadhyay, Rameshchandra Bandyopadhyay, Kotibabu of Bali, Alauddin Khan, Upendranath Gangopadhyay, Gopeshwar Bandyopadhyay, One anonymous  person, Ramaprashad Mukhopadhyay, Amiya Ranjan Bandyopadhyay.',"#FFFFFF");
messages[31] = new Array('images/radhika_full.jpg','Radhika Proshad Goswami.',"#FFFFFF");
messages[32] = new Array('images/ramesh_full.jpg','Ramesh ch. with Subodh Nandi.',"#FFFFFF");
messages[33] = new Array('images/surendranath_full.jpg','Surendranath Bandyopadhyay with Surbahar.',"#FFFFFF");
messages[34] = new Array('images/ashes_full.jpg','Ashes Ch. Bandyopadhyay.',"#FFFFFF");
messages[35] = new Array('images/death_full.jpg','Death of Gopeswar Bandyopadhyay.',"#FFFFFF");
messages[36] = new Array('images/gopeswar_full.jpg','Gopeswar Bandyopadhyay at his old age with Ramsatya.',"#FFFFFF");
messages[37] = new Array('images/gyan_full.jpg','Gyan Gosain.',"#FFFFFF");
messages[38] = new Array('images/nihar_full.jpg','3rd Generation of Bishnupur Gharana.From left hand side Ramprasanna Bandyopadhyay, Gopeshwar Bandyopadhyay, Surendranath Bandyopadhyay, Ramkrishna Bandyopadhyay.',"#FFFFFF");
messages[39] = new Array('images/child_full.jpg','Little Amiyaranjan with his elder Sister Anjali & brothers Ajoy,Bijoy.',"#FFFFFF");
messages[40] = new Array('images/brothers_full.jpg','5 brothers of 5th Gen. Bishnupur Gharana,Nikhilranjan,Monoranjan,Amiyaranjan,Chittoranjan,Niharranjan.',"#FFFFFF");
messages[41] = new Array('images/gokul_full.jpg','Gokul Nag.',"#FFFFFF");
messages[42] = new Array('images/record01_full.jpg','Gramaphone Record of Achariya Satyakinkar Bandyopadhyay.',"#FFFFFF");
messages[43] = new Array('images/record02_full.jpg','Gramaphone Record of Achariya Satyakinkar Bandyopadhyay.',"#FFFFFF");
messages[44] = new Array('images/record03_full.jpg','Gramaphone Record of Achariya Satyakinkar Bandyopadhyay.',"#FFFFFF");
messages[45] = new Array('images/ins01_full.jpg','Ramprasanna Bandyopadhyays Surbahar',"#FFFFFF");
messages[46] = new Array('images/ins02_full.jpg','Banjo',"#FFFFFF");
messages[47] = new Array('images/ins03_full.jpg','Nouka Tarang',"#FFFFFF");
messages[48] = new Array('images/ins04_full.jpg','Nyas Tarang',"#FFFFFF");
messages[49] = new Array('images/ins05_full.jpg','Kanon',"#FFFFFF");
messages[50] = new Array('images/ins06_full.jpg','Bindubashini Debis Jal Tarang.',"#FFFFFF");
messages[51] = new Array('images/book-series_full.jpg','Books on Bishnupur Gharana written by Ustads.',"#FFFFFF");
messages[52] = new Array('images/book-series_full01.jpg','Books on Bishnupur Gharana written by Ustads.',"#FFFFFF");
messages[53] = new Array('images/ramprasanna_full.jpg','Ramprasanna Bandyopadhyay.',"#FFFFFF");
////////////////////  END OF CUSTOMIZATION AREA  ///////////////////

// preload images that are to appear in tooltip
// from arrays above
if (document.images) {
	var theImgs = new Array();
	for (var i=0; i<messages.length; i++) {
  	theImgs[i] = new Image();
		theImgs[i].src = messages[i][0];
  }
}

// to layout image and text, 2-row table, image centered in top cell
// these go in var tip in doTooltip function
// startStr goes before image, midStr goes between image and text
var startStr = '<table width="' + tipWidth + '"><tr><td align="center" width="100%"><img src="';
var midStr = '" border="0"></td></tr><tr><td valign="top">';
var endStr = '</td></tr></table>';

////////////////////////////////////////////////////////////
//  initTip	- initialization for tooltip.
//		Global variables for tooltip. 
//		Set styles
//		Set up mousemove capture if tipFollowMouse set true.
////////////////////////////////////////////////////////////
var tooltip, tipcss;
function initTip() {
	if (nodyn) return;
	tooltip = (ie4)? document.all['tipDiv']: (ie5||ns5)? document.getElementById('tipDiv'): null;
	tipcss = tooltip.style;
	if (ie4||ie5||ns5) {	// ns4 would lose all this on rewrites
		tipcss.width = tipWidth+"px";
		tipcss.fontFamily = tipFontFamily;
		tipcss.fontSize = tipFontSize;
		tipcss.color = tipFontColor;
		tipcss.backgroundColor = tipBgColor;
		tipcss.borderColor = tipBorderColor;
		tipcss.borderWidth = tipBorderWidth+"px";
		tipcss.padding = tipPadding+"px";
		tipcss.borderStyle = tipBorderStyle;
	}
	if (tooltip&&tipFollowMouse) {
		document.onmousemove = trackMouse;
	}
}

window.onload = initTip;

/////////////////////////////////////////////////
//  doTooltip function
//			Assembles content for tooltip and writes 
//			it to tipDiv
/////////////////////////////////////////////////
var t1,t2;	// for setTimeouts
var tipOn = false;	// check if over tooltip link
function doTooltip(evt,num) {
	if (!tooltip) return;
	if (t1) clearTimeout(t1);	if (t2) clearTimeout(t2);
	tipOn = true;
	// set colors if included in messages array
	if (messages[num][2])	var curBgColor = messages[num][2];
	else curBgColor = tipBgColor;
	if (messages[num][3])	var curFontColor = messages[num][3];
	else curFontColor = tipFontColor;
	if (ie4||ie5||ns5) {
		var tip = startStr + messages[num][0] + midStr + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + messages[num][1] + '</span>' + endStr;
		tipcss.backgroundColor = curBgColor;
	 	tooltip.innerHTML = tip;
	}
	if (!tipFollowMouse) positionTip(evt);
	else t1=setTimeout("tipcss.visibility='visible'",100);
}

var mouseX, mouseY;
function trackMouse(evt) {
	standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body //create reference to common "body" across doctypes
	mouseX = (ns5)? evt.pageX: window.event.clientX + standardbody.scrollLeft;
	mouseY = (ns5)? evt.pageY: window.event.clientY + standardbody.scrollTop;
	if (tipOn) positionTip(evt);
}

/////////////////////////////////////////////////////////////
//  positionTip function
//		If tipFollowMouse set false, so trackMouse function
//		not being used, get position of mouseover event.
//		Calculations use mouseover event position, 
//		offset amounts and tooltip width to position
//		tooltip within window.
/////////////////////////////////////////////////////////////
function positionTip(evt) {
	if (!tipFollowMouse) {
		mouseX = (ns5)? evt.pageX: window.event.clientX + standardbody.scrollLeft;
		mouseY = (ns5)? evt.pageY: window.event.clientY + standardbody.scrollTop;
	}
	// tooltip width and height
	var tpWd = (ie4||ie5)? tooltip.clientWidth: tooltip.offsetWidth;
	var tpHt = (ie4||ie5)? tooltip.clientHeight: tooltip.offsetHeight;
	// document area in view (subtract scrollbar width for ns)
	var winWd = (ns5)? window.innerWidth-20+window.pageXOffset: standardbody.clientWidth+standardbody.scrollLeft;
	var winHt = (ns5)? window.innerHeight-20+window.pageYOffset: standardbody.clientHeight+standardbody.scrollTop;
	// check mouse position against tip and window dimensions
	// and position the tooltip 
	if ((mouseX+offX+tpWd)>winWd) 
		tipcss.left = mouseX-(tpWd+offX)+"px";
	else tipcss.left = mouseX+offX+"px";
	if ((mouseY+offY+tpHt)>winHt) 
		tipcss.top = winHt-(tpHt+offY)+"px";
	else tipcss.top = mouseY+offY+"px";
	if (!tipFollowMouse) t1=setTimeout("tipcss.visibility='visible'",100);
}

function hideTip() {
	if (!tooltip) return;
	t2=setTimeout("tipcss.visibility='hidden'",100);
	tipOn = false;
}

document.write('<div id="tipDiv" style="position:absolute; visibility:hidden; z-index:100"></div>')