function rnd(){
	rnd.seed = (rnd.seed*9301+49297) % 233280;
	return rnd.seed/(233280.0);
}

function rand(number){
        return Math.ceil(rnd()*number);
}

function autoPix(){
	for (var i = 0; i<document.aspnetForm.elements.length; i++) {
        if ((document.aspnetForm.elements[i].name.indexOf('txtguess') > -1)&& !document.aspnetForm.elements[i].disabled) {
			document.aspnetForm.elements[i].value = rand(10000);
        }
    }
}

function switchTxt(){
	var option=['showLast20','closeLast20'];
	for(var i=0; i<option.length; i++){
		obj=document.getElementById(option[i]);
		obj.className=(obj.className=="visible")? "hidden" : "visible";
	}
}

rnd.today=new Date();
rnd.seed=rnd.today.getTime();