function go(){
}

function timesystem(){
var y = window.setInterval("pricer();", 1000);
pricer();
}

function pricer(){
var mvalue=document.orderf.mquantity.value * 195;
if(mvalue <0 || isNaN(mvalue)==true){ mvalue = 0; }
var wvalue=document.orderf.wquantity.value * 299;
if(wvalue <0 || isNaN(wvalue)==true){ wvalue = 0; }

var cost = (mvalue + wvalue);

document.getElementById("pri").innerHTML= "£"+cost;
		
}