// JavaScript Document
function over(obj){
	var a =obj.src;
		var b = a.split('/').pop().split('_');  
		
		if(b[0]=='a')
			return;
		
		if(b[0]=='n')
			b[0]='o';
		else
			b[0]='n';
				
		var c = b.join('_');
		obj.src ='../img-layout/'+ c;
}
function over1(obj){
	var a =obj.src;
		var b = a.split('/').pop().split('_');  
		
		if(b[0]=='a')
			return;
		
		if(b[0]=='n')
			b[0]='o';
		else
			b[0]='n';
				
		var c = b.join('_');
		obj.src ='img-nav/'+ c;
}
function over2(obj){
	var a =obj.src;
		var b = a.split('/').pop().split('_');  
		
		if(b[0]=='a')
			return;
		
		if(b[0]=='n')
			b[0]='o';
		else
			b[0]='n';
				
		var c = b.join('_');
		obj.src ='../img-nav/'+ c;
}
function over3(obj){
	var a =obj.src;
		var b = a.split('/').pop().split('_');  
		
		if(b[0]=='a')
			return;
		
		if(b[0]=='n')
			b[0]='o';
		else
			b[0]='n';
				
		var c = b.join('_');
		obj.src ='../img-nav-ep/'+ c;
}
function over4(obj){
	var a =obj.src;
		var b = a.split('/').pop().split('_');  
		
		if(b[0]=='a')
			return;
		
		if(b[0]=='n')
			b[0]='o';
		else
			b[0]='n';
				
		var c = b.join('_');
		obj.src ='../img-nav-fp/'+ c;
}