var namedDiv = '';

function trim(a){
	var tmp=new Array();
	for(j=0;j<a.length;j++)
		if(a[j]!='')
			tmp[tmp.length]=a[j];
	a.length=tmp.length;
	for(j=0;j<tmp.length;j++)
		a[j]=tmp[j];
	return a;
}

function StyleSheetChanger(cssClassName,toChange,changeTo) {
	for(i = 0; document.styleSheets.length > i; i++) //IE
	{
		var aName = cssClassName.split(',');
		if(document.styleSheets[i].rules != undefined)
		{
			for(j = 0; document.styleSheets[i].rules.length > j; j++)
			{
				for (k =0; aName.length > k; k++) {
					var checkOp = aName[k].replace(/(^ +| +$)/, "");
					if(document.styleSheets[i].rules[j].selectorText.toLowerCase() == checkOp)
					{
						document.styleSheets[i].rules[j].style[toChange] = changeTo;
					}
				}
			}
		} else if(document.styleSheets[i].cssRules != undefined) //Mozilla
		{
			for(j = 0; document.styleSheets[i].cssRules.length > j; j++)
			{
				if(document.styleSheets[i].cssRules[j].selectorText.toLowerCase() == cssClassName)
				{
					document.styleSheets[i].cssRules[j].style[toChange] = changeTo;
				}
			}
		}
	}
}

function findPosX(obj)
{
	var curleft = 0;
	if (obj.offsetParent) {
		while (obj) {
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	} else if (obj.x)
		curleft += obj.x;

	return curleft;
}

function findPosY(obj)
{
	var curtop = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	}
	else if (obj.y)
		curtop += obj.y;
	return curtop;
}

function showMenu(menu,op,pKleur,direction,xPosMenu) {
	if (menu!=namedDiv) {
		hideSubMenu();
	}

	clearHideMenu();
	namedDiv = menu;
	//StyleSheetChanger('#'+op,'backgroundColor',pKleur);
	oMenu = document.getElementById(menu);
	oSelf = document.getElementById(op);

	if(direction=='') {
		yProp = findPosY(oSelf);
        xProp = findPosX(oSelf);
		oMenu.style.top = yProp+'px';

        if(xPosMenu)
            oMenu.style.left = oSelf.offsetLeft+'px';
        else
		    oMenu.style.left = '200px';
	}

    if(pKleur) {
	    StyleSheetChanger('.submenu a, .submenu a:link, .submenu a:visited, .submenu a:active','color',pKleur);
	    StyleSheetChanger('.submenu a:hover','backgroundColor',pKleur);
	}

    oMenu.style.display = 'inline';
}

function hideDelayedMenu() {
	delayhide=setTimeout("hideSubMenu()",300);
}

function clearHideMenu(){
	if (typeof delayhide!="undefined")
		clearTimeout(delayhide)
}

function hideSubMenu(bgcolor, textcolor) {
	if(document.getElementById('submenus')) {
		oCon = document.getElementById('submenus');
		var inputs = oCon.getElementsByTagName("div");
		for (var i=0; i<inputs.length; i++) {
			inputs[i].style.display = 'none';
		}
	} else {
		/*closeSubmenu(bgcolor, textcolor);*/
	}
}

function changeImg(menu, src) {
	menu.src = src;
}