$(document).ready(function() {

	$("#buttonStart").hover(function(){
								$("#buttonStart img").addClass("trans-0").attr("src", "/img/buttons/start1.gif").animate({ 
								        opacity: 1,
								      }, 200 );
							},
							function() {
								$("#buttonStart img").animate({ opacity: 0 }, 200 ).removeClass("trans-0");
							}
	);
	$("#buttonProducts").hover(function(){
								$("#buttonProducts img").addClass("trans-0").attr("src", "/img/buttons/products1.gif").animate({ 
								        opacity: 1,
								      }, 200 );
							},
							function() {
								$("#buttonProducts img").animate({ opacity: 0 }, 200 ).removeClass("trans-0");
							}
	);	
	$("#buttonReferences").hover(function(){
								$("#buttonReferences img").addClass("trans-0").attr("src", "/img/buttons/references1.gif").animate({ 
								        opacity: 1,
								      }, 200 );
							},
							function() {
								$("#buttonReferences img").animate({ opacity: 0 }, 200 ).removeClass("trans-0");
							}
	);	
	$("#buttonSupport").hover(function(){
								$("#buttonSupport img").addClass("trans-0").attr("src", "/img/buttons/support1.gif").animate({ 
								        opacity: 1,
								      }, 200 );
							},
							function() {
								$("#buttonSupport img").animate({ opacity: 0 }, 200 ).removeClass("trans-0");
							}
	);	
	$("#buttonContact").hover(function(){
								$("#buttonContact img").addClass("trans-0").attr("src", "/img/buttons/contact1.gif").animate({ 
								        opacity: 1,
								      }, 200 );
							},
							function() {
								$("#buttonContact img").animate({ opacity: 0 }, 200 ).removeClass("trans-0");
							}
	);
});