Pics = new Array(8);
for (i=1; i<=7; i++)
	{
	Pics[i] = new Image;
	}
Pics[1].src='imgs/homeS.gif';
Pics[2].src='imgs/eventsS.gif';
Pics[3].src='imgs/servecesS.gif';
Pics[4].src='imgs/teacherS.gif';
Pics[5].src='imgs/cornerS.gif';
Pics[6].src='imgs/involvedS.gif';
Pics[7].src='imgs/contactusS.gif';
	function change(num)
	{
	if(document.getElementById('im'+num).src!=Pics[num].src)
		{
			document.getElementById('im'+num).src=Pics[num].src;
		}else{
			var imgSrc = new String;
			imgSrc=Pics[num].src;
			re = /S.gif/;
			imgSrc = imgSrc.replace(re,'.gif');
			document.getElementById('im'+num).src=imgSrc;
		}
	}