function cmGetX (obj)
{
	var x = 0;

	do
	{
		x += obj.offsetLeft;
		obj = obj.offsetParent;
	}
	while (obj);
	return x;
}

function cmGetY (obj)
{
	var y = 0;
	do
	{
		y += obj.offsetTop;
		obj = obj.offsetParent;
	}
	while (obj);
	return y;
}
	
		


function selectAll(obj, bool) {
	
	var boxes = document.getElementsByTagName('INPUT');
	
	for (i=0;i<boxes.length;i++) {
		
		if (boxes(i).type == 'checkbox') {
						
			boxes(i).checked = bool;
			
		}
		
	}
	
}


function openWin(url, wi, he) {

  var win = window.open(url,'popup_win','width='+wi+',height='+he+',resizable=yes,status=no,toolbar=no,menubar=no, scrollbars=yes');
 
  var b = screen.width;
  var h = screen.height;
 
  b = (b - wi) / 2;
  h = (h - he) / 2;
 
  win.moveTo(b,h);

}


function setClass(obj, naam) {

  obj.className = naam;

}



var hovers = [[ [], [] ],[ [], [] ]] , images = [];

function loadHovers (tag) {
	
  tag_text = (tag == 0)?'img':'input';

  images[tag] = document.getElementsByTagName ( tag_text );
  
  for ( var i = 0; i < images[tag].length; i ++ ) {

    if ( images[tag].item(i).getAttribute ( 'src' ) && images[tag].item(i).getAttribute ( 'hover' ) ) {
         
      // preload it
    
      ( hovers[tag][0][i] = new Image () ).src=images[tag].item(i).getAttribute('src');
      ( hovers[tag][1][i] = new Image () ).src=images[tag].item(i).getAttribute('hover');
         
      if ( images[tag].item(i).attachEvent ) {
 
        images[tag].item(i).attachEvent ( 'onmouseover', new Function ( "hover(" + i + ", true, '"+tag+"');" ) );
        images[tag].item(i).attachEvent ( 'onmouseout', new Function ( "hover(" + i + ", false, '"+tag+"');" ) );

       } 

       else if ( images.item(i).addEventListener ) {
       
         images[tag].item(i).addEventListener ( 'mouseover', new Function ( "hover(" + i + ", true);" ), true );
         images[tag].item(i).addEventListener ( 'mouseout', new Function ( "hover(" + i + ", false);" ), true );
    
       }
     }
   }

   if (tag != 1) {

     loadHovers(1);

   }

}

function hover ( index, mouseover, tag ) {

   images[tag].item( index ).setAttribute ( 'src', hovers[tag][mouseover?1:0][index].src );

}


function markRow(rowobj, nClass) {

  var theCells = null;

  if (rowobj.cells != 'undefined') {

    theCells = rowobj.cells;

  }

  else if (rowobj.getElementsByTageName('td')) {

    theCells = rowobj.getElementsByTageName('td');

  }

  cntCells = theCells.length;

  if (cntCells > 0) {

    for (i=0;i<cntCells;i++) {

      theCells[i].className = nClass;
  

    }

  }

}

function check_domain(nname) {

	var arr = new Array('.com','.net','.org','.biz','.coop','.info','.museum','.name', '.pro','.edu','.gov','.int','.be','.de','.nl','.nu','.tv','.uk','.us');

	var mai = nname;
	var val = true;

	var dot = mai.lastIndexOf(".");
	var dname = mai.substring(0,dot);
	var ext = mai.substring(dot,mai.length);
	
	if (dot > 2 && dot < 57) {

		for (var i=0; i<arr.length; i++) {

	  		if (ext == arr[i]) {

	 			val = true;
				break;
	  		}	
	  		
			else {
	 	
				val = false;
	  		
			}
	
		}

		if (val == false) {

			alert("De domeinnaam extensie is niet correct");
		 	return false;
	
		}
	
		else {

			for(var j=0; j<dname.length; j++) {

				var dh = dname.charAt(j);
		  		var hh = dh.charCodeAt(0);

		  		if ((hh > 47 && hh<59) || (hh > 64 && hh<91) || (hh > 96 && hh<123) || hh==45) {

					if ((j==0 || j==dname.length-1) && hh == 45) {

						alert("Ongeldige karakter(s) in de domeinnaam");
			      			return false;
		 	 
					}
		  
				}

				else {

					alert("Ongeldige karakter(s) in de domeinnaam");
					return false;

				}

			}

		}

	}

	else {

 		alert("De domeinnaam is te kort of te lang");
	 	return false;

	}	

	return true;
	
}



function checkForm(form) {

  var aantal = form.elements.length;

  var string = 'U heeft de volgende verplichte veld(en) niet ingevuld: \n';

  string += '-------------------------------------------------------\n';

  var returnbool = true;

  for (var i=0;i<aantal;i++) {

    if (form.elements[i].type == 'checkbox') {

      if (form.elements[i].title.length > 0 && !form.elements[i].checked) {

	string += form.elements[i].title+'\n';

        returnbool = false;

      }

    }

    else if (form.elements[i].value.length == 0 && form.elements[i].title.length > 0 && !form.elements[i].disabled && form.elements[i].style.display != 'none') {

      string += form.elements[i].title+'\n';

      returnbool = false;

    }

  }

  if (returnbool) {

    return true;

  }

  else {

  	string += '-------------------------------------------------------\n';

    string += 'Vul deze velden in om de actie te voltooien';

    alert(string);

    return false;

  }

}