function changeLeftContent(elementToShow, selectedMenu) {
    //loop through dataElements to show and hide
    for (var i = 0; i < dataElements.length; ++i) {
        var temp = document.getElementById(dataElements[i]);

        if (dataElements[i] == elementToShow) {
            temp.style.visibility = 'visible';
            temp.style.display = 'block';
            selected = null;
            continue;
        }
		
        temp.style.visibility = 'hidden';
        temp.style.display = 'none';
    }

    //loop through menuElements to change the text
    for (var j = 0; j < menuElements.length; ++j) {
        var temp = document.getElementById(menuElements[j]);
        if (menuElements[j] == selectedMenu) {
			temp.className = "SelectedMenu";
            // temp.style.fontWeight = 'bold';
            selected = menuElements[j];
            continue;
        }

		temp.className = "NormalMenu";
        // temp.style.fontWeight = 'normal';
    }

    for (var k = 0; k < subMenuElements.length; ++k) {
        var temp = document.getElementById(subMenuElements[k]);
        temp.style.visibility = 'hidden';
        temp.style.display = 'none';
    }
};

function changeInnerContent(contentToShow, selectedSubmenu, min, max) {
    //loop through dataElements to show and hide
    for (var i = min; i <= max; ++i) {
        var temp = document.getElementById(contentSubMenu[i]);

        if (contentSubMenu[i] == contentToShow) {
            temp.style.visibility = 'visible';
            temp.style.display = 'block';
            continue;
        }

        temp.style.visibility = 'hidden';
        temp.style.display = 'none';
    }

    //loop through menuElements to change the text
    for (var j = min; j <= max; ++j) {
        var temp = document.getElementById(subMenus[j]);
        if (subMenus[j] == selectedSubmenu) {
            temp.style.fontWeight = 'bold';
            temp.style.textDecoration = 'underline';
            continue;
        }

        temp.style.fontWeight = '';
        temp.style.textDecoration = '';
        temp.className = '';
    }
}

function openSubMenu(name, firstElement) {
    var temp = document.getElementById(name);

    temp.style.visibility = 'visible';
    temp.style.display = 'block';
}

function callLanguageOver(name)
{		
	var info = document.getElementById( name );
	info.src = "images/language/" + name + "_on.png";
}
		
function callLanguageOut(name)
{		
	var info = document.getElementById( name );
	info.src = "images/language/" + name + "_off.png";
}

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];}}
}