function handleOut(elname) {
    // hides all popups, parameter is the div name
    // function called on onmouseout of hyperlink parameter

    d = document.getElementById(elname) ;
    d.style.left = "-2650px";
}

function SetLyr(obj1,lyr)
{
   	obj = document.getElementById (obj1) ;
	var newX = findPosX(obj);
	var newY = findPosY(obj);
	
	var x = document.getElementById(lyr);	
	
	var finy = 0;
	var finx = 0;	 
	finx = newX;	  
	finy = newY + 35;

	if (lyr == Tab1) {
//	    var tab = document.getElementById("table1");
//	    var elements = tab.childNodes[0].childNodes[0].childNodes[0].children;
//	    finx = newX - 1;
	}
	else if (lyr == Tab2) {
//	    var tab = document.getElementById("table2");
//	    var elements = tab.childNodes[0].childNodes[0].childNodes[0].children;
//	    finx = newX - 1;
	}
	else if (lyr == Tab3) {
	    var tab = document.getElementById("table3");
	    var elements = tab.childNodes[0].childNodes[0].childNodes[0].childNodes.length;	    
	    finx = newX - shiftDHTML(elements, 3);
	}
	else if (lyr == Tab4) {
//	    var tab = document.getElementById("table4");
//	    var elements = tab.childNodes[0].childNodes[0].childNodes[0].children;
	    finx = newX - 348;
	}
	else if (lyr == Tab5) {
	    var tab = document.getElementById("table5");
	    var elements = tab.childNodes[0].childNodes[0].childNodes[0].childNodes.length;	
	   
	    finx = newX - shiftDHTML(elements, 5);
	}
	else if (lyr == Tab6) {
//	    var tab = document.getElementById("table6");
//	    var elements = tab.childNodes[0].childNodes[0].childNodes[0].children;
	    finx = newX - 14;
	}
	else if (lyr == Tab7) {
	    var tab = document.getElementById("table7");
	    var elements = tab.childNodes[0].childNodes[0].childNodes[0].childNodes.length;	   
	    finx = newX - shiftDHTML(elements, 7);
	}
	
	//set final position
	 x.style.top =  finy + 'px';
	 x.style.left = finx + 'px';
}

function shiftDHTML(columns, t1Nav) {
    if (t1Nav < 4) {
        //t1,t2,t3
        if (columns == 1)
            return 0;
        else if (columns == 2)
            return 0;
        else if (columns == 3)
            return 181;
        else
            return 0;
    }
    else if (t1Nav > 6) {
        //t7
        if (columns == 1)
            return 108;
        else if (columns == 2)
            return 313;
        else if (columns == 3)
            return 518;
        else
            return 0;
    }
    else {
        //t4,t5,t6 - but t4 and t6 are hard coded special dhtml
        if (columns == 1)
            return 0;
        else if (columns == 2)
            return 111;
        else if (columns == 3)
            return 316;
        else
            return 0;
    }
}

function findPosX(obj)
  { //recursively searches through dom to get x postion
    var curleft = 0;
    if(obj.offsetParent)
        while(1) 
        {
          curleft += obj.offsetLeft;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.x)
        curleft += obj.x;
    return curleft;
  }

function findPosY(obj)
  {//recursively searches through dom to get y postion
    var curtop = 0;
    if(obj.offsetParent)
        while(1)
        {
          curtop += obj.offsetTop;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.y)
        curtop += obj.y;
    return curtop;
}

function openVideoLibrary(videoId) {
	// displays YouTube video in a popup
	var winOptions = "width=990, height=650, resizable=no, scrollbars=no, location=yes, dialog=yes";
	if (videoId) {
		window.open("/library.html#/" + videoId, "videoLibrary", winOptions);
	}
	else {
		window.open("/library.html", "videoLibrary", winOptions);
	}
}