//Checking all fields in the form for number
function checkNumber()
{
var total;
total=document.changeorder.elements.length;
for(a=0;a<total;a++)
{
if(document.changeorder.elements[a].type=="text")
{
var
x=document.changeorder.elements[a].value;
if(x.length==0)
document.changeorder.elements[a].value=0;
for(i=0;i<x.length;i++)
{
if(!((x.charAt(i)>=0)&&(x.charAt(i)<=9)))
{
alert('Please
enter Quantity as number only');
document.changeorder.elements[a].select();
document.changeorder.elements[a].focus();
return
false;
}
}
}
}
return true;
}