var DHTML = (document.getElementById || document.all || document.layers);			
	function getObj(name)
		{
		  if (document.getElementById)
		  {
				this.obj = document.getElementById(name);
				this.style = document.getElementById(name).style;
		  }
		  else if (document.all)
		  {
				this.obj = document.all[name];
				this.style = document.all[name].style;
		  }
		  else if (document.layers)
		  {
				this.obj = document.layers[name];
				this.style = document.layers[name];
		  }
		}

function invi(loc,flag)
{	
 	if (!DHTML) return;
	var x = new getObj(loc);
	 x.style.visibility = (flag) ? 'hidden' : 'visible'
}

function nodisplay(loc,flag)
{
 	if (!DHTML) return;
	var x = new getObj(loc);
	 x.style.display = (flag) ? 'none' : 'inline'
}



//display hidden div
function displayBox(id){
	var elemId;
	var clickedInt = id.substring(5, 6) //get the integer of the clicked item
	for (i=0; i<linksInt; i++){
		elemId = "click" + (i +1)
		//alert("elemId" + elemId)
		nodisplay(elemId,1)
	}
	nodisplay(id,0) // display the popup box/text for the clicked item
}

function isLocal(){
	temp = location.href
	if (temp.search("file") > -1 ) {
		return true;
	}else{
		return false;
	}
}
// pdf files are used for reference purposes and therefore may be left open throughout the course
// each pdf should pass a unique number to this function and always pass that same number so that 
// 1) one file doesn't replace another and 2) if the same file is launched twice it focuses that 
// existing file


// stripe a table from a list apart
// this function is needed to work around 
  // a bug in IE related to element attributes
function hasClass(obj) {
     var result = false;
     if (obj.getAttributeNode("class") != null) {
         result = obj.getAttributeNode("class").value;
     }
     return result;
}   
function stripe(id) {
    // the flag we'll use to keep track of 
    // whether the current row is odd or even
    var even = false;
  
    // if arguments are provided to specify the colours
    // of the even & odd rows, then use the them;
    // otherwise use the following defaults:
    var evenColor = arguments[1] ? arguments[1] : "#cdebf6";
    var oddColor = arguments[2] ? arguments[2] : "#ece9d8";
  
    // obtain a reference to the desired table
    // if no such table exists, abort
    var table = document.getElementById(id);
    if (! table) { return; }
    
    // by definition, tables can have more than one tbody
    // element, so we'll have to get the list of child
    // &lt;tbody&gt;s 
    var tbodies = table.getElementsByTagName("tbody");

    // and iterate through them...
    for (var h = 0; h < tbodies.length; h++) {
    
     // find all the &lt;tr&gt; elements... 
      var trs = tbodies[h].getElementsByTagName("tr");
      
      // ... and iterate through them
      for (var i = 0; i < trs.length; i++) {

        // avoid rows that have a class attribute
        // or backgroundColor style
        if (! hasClass(trs[i]) &&
            ! trs[i].style.backgroundColor) {
 		  
          // get all the cells in this row...
          var tds = trs[i].getElementsByTagName("td");
        
          // and iterate through them...
          for (var j = 0; j < tds.length; j++) {
        
            var mytd = tds[j];

            // avoid cells that have a class attribute
            // or backgroundColor style
            if (! hasClass(mytd) &&
                ! mytd.style.backgroundColor) {
        
              mytd.style.backgroundColor =
                even ? evenColor : oddColor;
            
            }
          }
        }
        // flip from odd to even, or vice-versa
        even =  ! even;
      }
    }
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function showbtn1() { //v3.0
  MM_swapImage("heart","","/images/h_heart_ro.gif",1);
  MM_swapImage("newborn","","/images/h_screening.gif",1);
  MM_swapImage("hiv","","/images/h_hiv.gif",1);
  MM_swapImage("dental","","/images/h_dental.gif",1);
  MM_swapImage("drinking","","/images/h_drinking.gif",1);
  displayBox("click1");
}
function showbtn2() { //v3.0
  MM_swapImage("heart","","/images/h_heart.gif",1);
  MM_swapImage("newborn","","/images/h_screening_ro.gif",1);
  MM_swapImage("hiv","","/images/h_hiv.gif",1);
  MM_swapImage("dental","","/images/h_dental.gif",1);
  MM_swapImage("drinking","","/images/h_drinking.gif",1);
  displayBox("click2");
}
function showbtn3() { //v3.0
  MM_swapImage("heart","","/images/h_heart.gif",1);
  MM_swapImage("newborn","","/images/h_screening.gif",1);
  MM_swapImage("hiv","","/images/h_hiv_ro.gif",1);
  MM_swapImage("dental","","/images/h_dental.gif",1);
  MM_swapImage("drinking","","/images/h_drinking.gif",1);
  displayBox("click3");
}
function showbtn4() { //v3.0
  MM_swapImage("heart","","/images/h_heart.gif",1);
  MM_swapImage("newborn","","/images/h_screening.gif",1);
  MM_swapImage("hiv","","/images/h_hiv.gif",1);
  MM_swapImage("dental","","/images/h_dental_ro.gif",1);
  MM_swapImage("drinking","","/images/h_drinking.gif",1);
  displayBox("click4");
}
function showbtn5() { //v3.0
  MM_swapImage("heart","","/images/h_heart.gif",1);
  MM_swapImage("newborn","","/images/h_screening.gif",1);
  MM_swapImage("hiv","","/images/h_hiv.gif",1);
  MM_swapImage("dental","","/images/h_dental.gif",1);
  MM_swapImage("drinking","","/images/h_drinking_ro.gif",1);
  displayBox("click5");
}
	
