function chkblk(chkval)
{
	if(chkval == "")
		return false;
	else if(chkval.indexOf(' ') == 0)
		return false;
	else
		return true;
}
function chkmail(em)
{
	if(em == "") return true;
	if(em.indexOf('@',0) < 1)	{ return false; }
	else if(em.indexOf('.',0) == -1 || em.indexOf('.',0) == em.length - 1)	 { return false; }
	else if(em.indexOf('.',0) == em.indexOf('@',0)+1)  { return false; }
	else {  return true; }
}
function chknumber(em){
	for (count = 0;count < em.length;count++) {
		if ((em.charAt(count)<'0') || (em.charAt(count)>'9')) { 
			if (em.charAt(count) != ".") {	return false;  }
		}
	}
	return true;
}
function popup(url){
	//page = window.open(url , "list" ,	"top=0,left=0, menubar = 1, toolbar = 1, location = 1, scrollbars = 1, status =1, resizable = 1, width = 800, height = 550");
	page=window.open(url);
	page.focus();
}