/*Number check script-*/

function checknumber(val){
var x=val.value
var anum=/(^\d+$)|(^\d+\.\d+$)/
if (anum.test(x) || x==''){
  testresult=true
}
else{
alert("Please input a valid number for QTY!")
testresult=false
}
val.focus()
return(testresult)
}

function checksize(val){
var x=val.value
testresult=false
var size=x.toUpperCase()
if (size != 'L' && size != 'XL' && size != 'M')
  alert("Please input a valid value for Size(M-L-XL)!")
else{
  testresult==true
  }
val.focus()
return(testresult)
}