function openwin(URL, wdt, hgt, windowname){
  window.open(URL, windowname, 'width='+wdt+',height='+hgt+',left=200,top=200,toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1');
}

function ChangeImage (cur_style, new_style) {
	document.getElementById(cur_style).id = new_style;
}

function changeproductimage (imageid, mainurl, imagetype) {
  document.getElementById('productimage').src = mainurl + '/shopgfx/' + imageid + '.'+imagetype;
}

function DeleteCartProduct(artid, optid, mainurl, mainlang) {
  if(confirm("Weet u zeker dat u dit product uit uw winkelmand wilt verwijderen?"))
    parent.window.location= mainurl + "/" + mainlang + "/cart/delete/" + artid + "-" + optid + "/";
}

function checkIE () {
  var ua = window.navigator.userAgent;
	var msie = ua.indexOf ("MSIE ");
	if ( msie > 0 )		// is Microsoft Internet Explorer; return version number
		return 1;
	else	// is other browser
		return 0;
}

function showDivById (name, state) {
  var obj      = document.getElementById(name);

  if (state == undefined) {
    var state = (obj.style.display == "none") ? "show" : "none";
  }

  obj.style.display = (state == 'show') ? "block" : "none";
}