// JavaScript Document

linkA = new Array();
linkA[0] = "about.php#tap1";
linkA[1] = "about.php#tap2";
linkA[2] = "about.php#tap3";
linkA[3] = "demo.php";
linkstr = linkA[0];

function showHideDiv(a){
document.getElementById(a).getElementsByTagName("div")[0].style.visibility="visible";
}

  
prev = "contentS1";
prevLink = 0;
    function chgContent(divId){ 
		linkstr=linkA[divId];
		main = document.getElementById('sub'); 	
		main.getElementsByTagName('a')[divId].style.backgroundPosition="top";
		if(prevLink!=divId){
		main.getElementsByTagName('a')[prevLink].style.backgroundPosition="bottom";
		}
		document.getElementById(prev).style.display="none";	
		document.getElementById('contentS'+(divId+1)).style.display="block";
		prevLink = divId;
		prev = 'contentS'+(divId+1);
	}     

	function switchBG(numID,stat){
		document.status="44";
		main2 = document.getElementById('sub'); 
		if(stat=="on"){	
			main2.getElementsByTagName('a')[numID].style.backgroundPosition="top";
		}else if(stat=="out"){
			if(prevLink!=numID){
				main2.getElementsByTagName('a')[numID].style.backgroundPosition="bottom";
			}
		}
	}
	
	function gotolink(a){
		location.href=a;
	}