var x=0;
 function hello() {
	x++;
	if(x == 1)
		alert("Click on picture.");
 }		
 function hello1(doc, img) {
	document[doc].src = img;
 }
 var namePrompt = prompt("Please enter you name","");
 if (namePrompt == null || namePrompt == "") 
	namePrompt = "amigo";
 function dispName () { 
 	return (namePrompt);
 }