function onMouseOver1(){
				document.getElementById("obj1").style.visibility = 'visible';
				document.getElementById("obj2").style.visibility = 'hidden';
				document.getElementById("obj3").style.visibility = 'hidden';
				document.getElementById("obj4").style.visibility = 'hidden';
				
				document.getElementById("img1").src = 'img/test/p_dbicon.jpg';
				document.getElementById("img2").src = 'img/test/x_monitors.jpg';
				document.getElementById("img3").src = 'img/test/x_vector.jpg';
				document.getElementById("img4").src = 'img/test/x_greatjob.jpg';
			}
			function onMouseOver2(){
				document.getElementById("obj2").style.visibility = 'visible';
				document.getElementById("obj1").style.visibility = 'hidden';
				document.getElementById("obj3").style.visibility = 'hidden';
				document.getElementById("obj4").style.visibility = 'hidden';
				
				document.getElementById("img1").src = 'img/test/x_dbicon.jpg';
				document.getElementById("img2").src = 'img/test/p_monitors.jpg';
				document.getElementById("img3").src = 'img/test/x_vector.jpg';
				document.getElementById("img4").src = 'img/test/x_greatjob.jpg';
			}
			function onMouseOver3(){
				document.getElementById("obj3").style.visibility = 'visible';
				document.getElementById("obj2").style.visibility = 'hidden';
				document.getElementById("obj1").style.visibility = 'hidden';
				document.getElementById("obj4").style.visibility = 'hidden';
				
				document.getElementById("img1").src = 'img/test/x_dbicon.jpg';
				document.getElementById("img2").src = 'img/test/x_monitors.jpg';
				document.getElementById("img3").src = 'img/test/p_vector.jpg';
				document.getElementById("img4").src = 'img/test/x_greatjob.jpg';
			}
			function onMouseOver4(){
				document.getElementById("obj4").style.visibility = 'visible';
				document.getElementById("obj2").style.visibility = 'hidden';
				document.getElementById("obj1").style.visibility = 'hidden';
				document.getElementById("obj3").style.visibility = 'hidden';
				
				document.getElementById("img1").src = 'img/test/x_dbicon.jpg';
				document.getElementById("img2").src = 'img/test/x_monitors.jpg';
				document.getElementById("img3").src = 'img/test/x_vector.jpg';
				document.getElementById("img4").src = 'img/test/p_greatjob.jpg';
			}