function validateFileExtension(fld) {
			if(!/(\.pdf)$/i.test(fld.value)) {

			alert("Please upload a PDF file only.");
			fld.value='';
			//fld.form.reset();
			fld.focus();
			return false;
			}
			return true;
		}
		
		function numberCheck(fld,number) {
			if (fld.value.length != number && number != 0)
			{
				alert("Please enter " + number + " numbers for this field.")
				fld.value="";
				fld.focus();
			}
			else
			{
				digits = "0123456789";
				for(i=0;i<fld.value.length;i++)
				{
					if(digits.indexOf(fld.value.charAt(i))<0)
					{
						alert("Please only use numbers."); 
						fld.value="";
						fld.focus();
						break;
					}
				}
			}
		}

		function emailCheck(fld) {		
			AtSym	= fld.value.indexOf('@');
			Period   = fld.value.lastIndexOf('.');
			Space	= fld.value.indexOf(' ');
			Length   = fld.value.length - 1;
			if ((AtSym < 1)||(Period <= AtSym+1)||(Period == Length)||(Space  != -1) || Length < 5)
			{
				alert('Please enter a valid e-mail address.');
				fld.value = "";
				fld.focus();
			}
		}