function regInput(obj, reg, inputStr)
{
	var docSel	= document.selection.createRange()
	if (docSel.parentElement().tagName != "INPUT")	return false
	oSel = docSel.duplicate()
	oSel.text = ""
	var srcRange	= obj.createTextRange()
	oSel.setEndPoint("StartToStart", srcRange)
	var str = oSel.text + inputStr + srcRange.text.substr(oSel.text.length)
	return reg.test(str)
}