// date validation
//Validate Date Field script- By JavaScriptKit.com
//For this script and 100s more, visit http://www.javascriptkit.com
//This notice must stay intact for usage
//Tweaked by David
function checkdate(input){
var validformat=/^\d{2}\/\d{2}\/\d{4}$/ //Basic check for format validity
var returnval=false
if (!validformat.test(input.value))
alert("Invalid Date of Birth Format. Please use correct format (dd/mm/yyyy) and submit again.")
else{ //Detailed check for valid date ranges
var dayfield=input.value.split("/")[0]
var monthfield=input.value.split("/")[1]
var yearfield=input.value.split("/")[2]
var dayobj = new Date(yearfield, monthfield-1, dayfield)
if ((dayobj.getMonth()+1!=monthfield)||(dayobj.getDate()!=dayfield)||(dayobj.getFullYear()!=yearfield))
alert("Invalid Date of Birth detected. Please correct and submit again.")
else
returnval=true
}
if (returnval==false) input.select()
return returnval
}