function init(){
	layer1 = document.getElementById('nav').style;
	layer1.xpos = parseInt(document.getElementById('nav').style.offsetLeft);
	layer1.ypos = parseInt(document.getElementById('nav').style.offsetTop);

	newXpos= (screen.width-750)/2;

	layer1.xpos = parseInt(document.getElementById('nav').style.offsetLeft);
	if (newXpos != null) {	
		layer1.xpos = newXpos;
		layer1.left = layer1.xpos;
	}
	document.getElementById('nav').style.display= "inline";
}

function setNav(tabid,subitem){
	c=tabid+"tab";
	d=tabid+"sub";
	if(document.getElementById(c)!= null) document.getElementById(c).className = "selectedlink";
	
	if (document.getElementById(tabid)) document.getElementById(tabid).style.display = "block";
	if ((subitem!= "")&&(subitem!= null)){ 			    
		e=tabid+subitem;
		document.getElementById(e).className = "selectedSublink";
	}
	// change class on english page
	//if (tabid == "english"){
		//document.getElementById('sitelogo').className = "logo-e";
	//}
	
} 

function newWin(myUrl){
	NewWin1 = window.open(myUrl,"pitom",'toolbar=1,directories=1,status=1,menubar=1,location=yes,scrollbars=1,resizable=1,width=800,height=600');
	NewWin1.focus();
}

function BookSideList(divn){
	if (divn){
		document.getElementById(divn).style.display = "none";
	}
}