function MM_preloadImages() { //v3.0 var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array(); var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i0&&parent.frames.length) { d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);} if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i or window onload event call // e.g. // // where: // parameter 0 = the unique ID name of the parent

. (string) // parameter 1 = the class rule of the inactive question

. (string) // parameter 2 = the class rule of the active question

. (string) // parameter 3 = (optional) will hide all other answer

s. (true or omit) // function zxcInitQA(zxcid,zxccls1,zxccls2,zxctog){ var zxcobj=document.getElementById(zxcid); var zxcchlds=zxcobj.childNodes; zxcobj.ary=[[zxcid,zxccls1,zxccls2,zxctog]]; var zxcary=[] for (var zxc0=0;zxc0 function emailCheck (emailStr) { var emailPat=/^(.+)@(.+)$/ var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]" var validChars="\[^\\s" + specialChars + "\]" var quotedUser="(\"[^\"]*\")" var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/ var atom=validChars + '+' var word="(" + atom + "|" + quotedUser + ")" var userPat=new RegExp("^" + word + "(\\." + word + ")*$") var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$") var matchArray=emailStr.match(emailPat) if (matchArray==null) { alert("Invalid email format") return false } var user=matchArray[1] var domain=matchArray[2] if (user.match(userPat)==null) { alert("Invalid email format.") return false } var IPArray=domain.match(ipDomainPat) if (IPArray!=null) { for (var i=1;i<=4;i++) { if (IPArray[i]>255) { alert("Please enter valid email address") return false } } return true } var domainArray=domain.match(domainPat) if (domainArray==null) { alert("Please enter valid email address") return false } var atomPat=new RegExp(atom,"g") var domArr=domain.match(atomPat) var len=domArr.length if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>3) { alert("Invalid email format") return false } if (len<2) { var errStr="Invalid email format" alert(errStr) return false } return true; } /* DVD */ function isBlank(s) { for (var i=0; i < s.length; i++) { c = s.charAt(i); if ((c != ' ') && (c != '\n') && (c != '\t')) return false; } if (s != "") return false; return true; } function isEmail(s) { if (s != null) { var pos1 = s.indexOf('@'); var pos2 = s.indexOf('.'); invalid_ch = "\/#?!, "; for (var i=0;i