// JavaScript Document

step=counter=1
timerDown="" 

function scrollDivDown(objid, rowheight){

	if (!rowheight) rowheight = 110;
	if (!objid) objid = "premiers";

	el=document.getElementById(objid)
	clearTimeout(timerDown) 
	el.scrollTop+=step;

	timeoutval = (counter == 1)? 4000 : 30 ;
	if (counter >= rowheight) counter = 0;
	counter+=step;
	
	timerDown=setTimeout("scrollDivDown('"+objid+"')",timeoutval)
	
	if(el.scrollTop>=el.scrollHeight-el.offsetHeight){
		setTimeout("scrolltoTop('"+objid+"')",4000)		
	}

}

function scrolltoTop(objid) {
	document.getElementById(objid).scrollTop=0
	counter = 1
}

function shownews() {
	d = document;
	d.getElementById("ahlanews").style.visibility = "visible";
}

function changetabs(value) {
	d=document;
	d.getElementById("tab1").style.display = 'none';
	d.getElementById("tab2").style.display = 'none';
	d.getElementById("tab3").style.display = 'none';
	d.getElementById("tab4").style.display = 'none';
	d.getElementById("tab5").style.display = 'none';
	d.getElementById(value).style.display = 'block';
	
	d.getElementById("tab1btn").className = 'tabs';
	d.getElementById("tab2btn").className = 'tabs';
	d.getElementById("tab3btn").className = 'tabs';
	d.getElementById("tab4btn").className = 'tabs';
	d.getElementById("tab5btn").className = 'tabs';
	d.getElementById(value+"btn").className = 'tabs_on';
	
}

function expCol (objID, cName) {
	domObj = document.getElementById(objID);
	var currentClass = domObj.className;
	if (cName) {
		if (currentClass.indexOf(cName)<0)
		{
			currentClass = currentClass+" "+cName;
			domObj.className = currentClass;
		}
		else
		{
			currentClass = currentClass.replace(cName, "");
			domObj.className = currentClass;
		}
	}
}

function switchView(from, to){
	document.getElementById(from).style.display = 'none';
	document.getElementById(to).style.display = 'block';
}