function xx_show(){

var zz=new Array();
			
			 zz[0]=get_random();
			 zz[1]=get_random();
			 zz[2]=get_random();
			 zz[3]=get_random();
			 
			var xx=""+zz[0]+zz[1]+zz[2]+zz[3];
			
			document.write('<input type="hidden" name="hiddenvalue" id="hiddenvalue" value="'+xx+'" />');
			document.write('<img alt="swagat" src="image/'+zz[0]+'.gif" /><img  src="image/'+zz[1]+'.gif"  alt="swagat"  /><img  src="image/'+zz[2]+'.gif"  alt="swagat"  /><img  src="image/'+zz[3]+'.gif"  alt="swagat"/>');// JavaScript Document
}
function get_random()
{

    var xx=null;
	var yy='xzc';
	
	xx=Math.floor(Math.random()*5);
	return xx;
	
}