/****************************************************************************
 * RadioJS.js
 *
 * Computer Science 50
 * Final Project
 * Danamona Andrianarimanana
 *
 * javascript code for the website in general
 ***************************************************************************/

		
		window.onload = initAll;      
        
        function initAll()
        {
            try
            {
                window.setTimeout("detectScreen()", 1);                       
                SetUpMargin();        
                MM_preloadImages('Images/btnHomeOver.gif','Images/btnHomeDown.gif','Images/btnGazetyOver.gif','Images/btnGazetyDown.gif','Images/btnRadioDown.gif','Images/btnRadioOver.gif');               
            }            
            catch(err)
            {
                alert(err.description);
            }            
       }
        
        // The function search if the div are aligned, and add a top margin if needed
        function SetUpMargin()
        {
            try
            {
                var content = document.getElementById('content');
                var leftcolumn = document.getElementById('leftcolumn'); 
                var rightcolumn = document.getElementById('rightcolumn');
                
                if(leftcolumn != null)
                {
                    if(leftcolumn.offsetTop == rightcolumn.offsetTop)
                    {
                      if(leftcolumn.offsetTop != content.offSetTop)
                       {                     
                         var left = leftcolumn.offsetTop;
                         var cont = content.offsetTop;
                         var dif = left - cont; 
                         content.style.marginTop = dif + "px";                                       
                       }                  
                    }
                    else
                    {
                        leftcolumn.offsetTop = rightcolumn.offsetTop;
                        SetUpMargin();                                                
                    }
                 }
                 else
                 {
                    
                 }
                  
            }
            
            catch(err)
            {
               //alert(err.description);
            }
        }
        
        // initiate the iFrame
        function iFrame(link, title)
        {
            try
            {
                document.getElementById('iFrame').src = link;   
                var header = document.getElementById('header');  
                header.innerHTML = title; 
            }
            catch(err)
            {
                alert(err.description);
            }                  
        }
        
         // detect the screen width, and set up the page width to 100% for small screen.
        function detectScreen()
        {
            var wrapper = document.getElementById("wrapper"); 
            if(wrapper)
            {
                if (screen.width <= 1024)
                {                
                    wrapper.style.width = "100%";
                }
                else 
                {
                    wrapper.style.width = "90%";
                }
            }
        }
       
//
// Navigation Bar -- Begin	
//
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_nbGroup(event, grpName) { //v6.0
  var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : ((args[i+1])? args[i+1] : img.MM_up);
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.MM_nbOver.length; i++) {
      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
  } else if (event == "down") {
    nbArr = document[grpName];
    if (nbArr)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = (args[i+1])? args[i+1] : img.MM_up;
      nbArr[nbArr.length] = img;
  } }
}
//
// Naveigation Bar -- End
//