function example1()
			{  
				window.open("example1.html","nueva_win","toolbar=no,statusbar=no,scrollbars=no,menubar=no,width=320,height=590,resizable=no,top=150,left=100");
				return;
			}
			function example2()
			{  
				window.open("example2.html","nueva_win","toolbar=no,statusbar=no,scrollbars=no,menubar=no,width=320,height=590,resizable=no,top=150,left=100");
				return;
			}
			function example3()
			{  
				window.open("example3.html","nueva_win","toolbar=no,statusbar=no,scrollbars=no,menubar=no,width=320,height=590,resizable=no,top=150,left=100");
				return;
			}
			function example4()
			{  
				window.open("example4.html","nueva_win","toolbar=no,statusbar=no,scrollbars=no,menubar=no,width=320,height=590,resizable=no,top=150,left=100");
				return;
			}