<>
<>
< language="JavaScript" type="text/javascript">
function alert_showmsg(msgs)
{
var whole_msg="";
var first_elmnt=null;
for(var m=0;m <>
{
if(null == first_elmnt)
{
first_elmnt = msgs[m]["input_element"];
}
whole_msg += msgs[m]["msg"] + "\n";
}
alert(whole_msg);
if(null != first_elmnt)
{
sfm_set_focus(first_elmnt);
}
}
function sfm_validator_enable_focus(enable)
{
document.set_focus_onerror = enable;
}
function set_addnl_vfunction(functionname)
{
this.formobj.addnlvalidation = functionname;
}
function sfm_set_focus(objInput)
{
if(document.set_focus_onerror)
{
objInput.focus();
}
}
function sfm_enable_show_msgs_together()
{
this.show_errors_together=true;
this.formobj.show_errors_together=true;
}
function clear_all_validations()
{
for(var itr=0;itr <>
{
this.formobj.elements[itr].validationset = null;
}
}
function form_submit_handler()
{
var bRet = true;
document.error_disp_handler.clear_msgs();
for(var itr=0;itr <>
{
if(this.elements[itr].validationset &&
!this.elements[itr].validationset.validate())
{
bRet = false;
}
if(!bRet && !this.show_errors_together)
{
break;
}
}
if(this.addnlvalidation)
{
str =" var ret = "+this.addnlvalidation+"()";
eval(str);
if(!ret)
{
bRet=false;
}
}
if(!bRet)
{
document.error_disp_handler.FinalShowMsg();
return false;
}
return true;
}
function Validator(frmname)
{
this.formobj=document.forms[frmname];
if(this.formobj.onsubmit)
{
this.formobj.old_onsubmit = this.formobj.onsubmit;
this.formobj.onsubmit=null;
}
else
{
this.formobj.old_onsubmit = null;
}
this.formobj._sfm_form_name=frmname;
this.formobj.onsubmit=form_submit_handler;
this.ValAddition = add_validation;
this.setAddnlValidationFunction=set_addnl_vfunction;
this.clearAllValidations = clear_all_validations;
this.disable_validations = false;//new
document.error_disp_handler = new sfm_ErrorDisplayHandler();
this.EnableOnPageErrorDisplay=validator_enable_OPED;
this.EnableOnPageErrorDisplaySingleBox=validator_enable_OPED_SB;
this.show_errors_together=true;
this.EnableMsgsTogether=sfm_enable_show_msgs_together;
document.set_focus_onerror=true;
this.EnableFocusOnError=sfm_validator_enable_focus;
}
function add_validation(itemname,descriptor,errstr)
{
var condition = null;
if(arguments.length > 3)
{
condition = arguments[3];
}
if(!this.formobj)
{
alert("Error: The form object is not set properly");
return;
}//if
var itemobj = this.formobj[itemname];
if(itemobj.length && isNaN(itemobj.selectedIndex) )
//for radio button; don't do for 'select' item
{
itemobj = itemobj[0];
}
if(!itemobj)
{
alert("Error: Couldnot get the input object named: "+itemname);
return;
}
if(!itemobj.validationset)
{
itemobj.validationset = new ValidationSet(itemobj,this.show_errors_together);
}
itemobj.validationset.add(descriptor,errstr,condition);
itemobj.validatorobj=this;
}
function validator_enable_OPED()
{
document.error_disp_handler.EnableOnPageDisplay(false);
}
function validator_enable_OPED_SB()
{
document.error_disp_handler.EnableOnPageDisplay(true);
}
function edh_clear_msgs()
{
this.msgdisplay.clearmsg(this.all_msgs);
this.all_msgs = new Array();
}
function edh_FinalShowMsg()
{
this.msgdisplay.showmsg(this.all_msgs);
}
function edh_EnableOnPageDisplay(single_box)
{
if(true == single_box)
{
this.msgdisplay = new SingleBoxErrorDisplay();
}
else
{
this.msgdisplay = new DivMsgDisplayer();
}
}
function edh_ShowMsg(msg,input_element)
{
var objmsg = new Array();
objmsg["input_element"] = input_element;
objmsg["msg"] = msg;
this.all_msgs.push(objmsg);
}
function AlertMsgDisplayer()
{
this.showmsg = alert_showmsg;
this.clearmsg=alert_clearmsg;
}
function sfm_ErrorDisplayHandler()
{
this.msgdisplay = new AlertMsgDisplayer();
this.EnableOnPageDisplay= edh_EnableOnPageDisplay;
this.ShowMsg=edh_ShowMsg;
this.FinalShowMsg=edh_FinalShowMsg;
this.all_msgs=new Array();
this.clear_msgs=edh_clear_msgs;
}
function alert_clearmsg(msgs)
{
}
function sfm_show_error_msg(msg,input_elmt)
{
document.error_disp_handler.ShowMsg(msg,input_elmt);
}
function SingleBoxErrorDisplay()
{
this.showmsg=sb_div_showmsg;
this.clearmsg=sb_div_clearmsg;
}
function sb_div_clearmsg(msgs)
{
var divname = form_error_div_name(msgs);
show_div_msg(divname,"");
}
function ValidationDesc(inputitem,desc,error,condition)
{
this.desc=desc;
this.error=error;
this.itemobj = inputitem;
this.condition = condition;
this.validate=vdesc_validate;
}
function vdesc_validate()
{
if(this.condition != null )
{
if(!eval(this.condition))
{
return true;
}
}
if(!validateInput(this.desc,this.itemobj,this.error))
{
this.itemobj.validatorobj.disable_validations=true;
sfm_set_focus(this.itemobj);
return false;
}
return true;
}
function ValidationSet(inputitem,msgs_together)
{
this.vSet=new Array();
this.add= add_validationdesc;
this.validate= vset_validate;
this.itemobj = inputitem;
this.msgs_together = msgs_together;
}
function add_validationdesc(desc,error,condition)
{
this.vSet[this.vSet.length]=
new ValidationDesc(this.itemobj,desc,error,condition);
}
function vset_validate()
{
var bRet = true;
for(var itr=0;itr { bRet = bRet && this.vSet[itr].validate(); if(!bRet && !this.msgs_together) { break; } } return bRet; } function TestRequiredInput(objValue,strError) { var ret = true; var val = objValue.value; val = val.replace(/^\s+|\s+$/g,"");//trim if(eval(val.length) == 0) { if(!strError || strError.length ==0) { strError = objValue.name + " : Required Field"; }//if sfm_show_error_msg(strError,objValue); ret=false; }//if return ret; } function TestMaxLen(objValue,strMaxLen,strError) { var ret = true; if(eval(objValue.value.length) > eval(strMaxLen)) { if(!strError || strError.length ==0) { strError = objValue.name + " : "+ strMaxLen +" characters maximum "; }//if sfm_show_error_msg(strError,objValue); ret = false; }//if return ret; } function TestMinLen(objValue,strMinLen,strError) { var ret = true; if(eval(objValue.value.length) < eval(strMinLen)) { if(!strError || strError.length ==0) { strError = objValue.name + " : " + strMinLen + " characters minimum "; }//if sfm_show_error_msg(strError,objValue); ret = false; }//if return ret; } function TestInputType(objValue,strRegExp,strError,strDefaultError) { var ret = true; var charpos = objValue.value.search(strRegExp); if(objValue.value.length > 0 && charpos >= 0) { objValue.style.background="lightblue"; if(!strError || strError.length ==0) { strError = strDefaultError; }//if sfm_show_error_msg(strError,objValue); ret = false; }//if return ret; } function TestLessThan(objValue,strLessThan,strError) { var ret = true; if(isNaN(objValue.value)) { sfm_show_error_msg(objValue.name +": Should be a number ",objValue); ret = false; }//if else if(eval(objValue.value) >= eval(strLessThan)) { if(!strError || strError.length ==0) { strError = objValue.name + " : value should be less than "+ strLessThan; }//if objValue.style.background="lightblue"; sfm_show_error_msg(strError,objValue); ret = false; }//if return ret; } function TestGreaterThan(objValue,strGreaterThan,strError) { var ret = true; if(isNaN(objValue.value)) { sfm_show_error_msg(objValue.name+": Should be a number ",objValue); ret = false; }//if else if(eval(objValue.value) <= eval(strGreaterThan)) { if(!strError || strError.length ==0) { strError = objValue.name + " : value should be greater than "+ strGreaterThan; }//if objValue.style.background="lightblue"; sfm_show_error_msg(strError,objValue); ret = false; }//if return ret; } function CheckBtwValues(objValue,strGrtVal,strError) { var ret = true; if(isNaN(objValue.value)) { sfm_show_error_msg(objValue.name+": Should be a number ",objValue); ret = false; }//if else if(objValue.value == '') { strError = "Please enter a GPA number only."; fldColor = "yello"; }//if else if(eval(objValue.value) >= 1 && eval(objValue.value) <> { strError = "FAIR - YOU HAVE GOT D GRADE."; fldColor = "green"; }//if else if(eval(objValue.value) >= 2 && eval(objValue.value) <> { strError = "GOOD - YOU HAVE GOT C GRADE."; fldColor = "green"; }//if else if(eval(objValue.value) >= 3 && eval(objValue.value) <> { strError = "VERY GOOD - YOU HAVE GOT B GRADE."; fldColor = "green"; }//if if(eval(objValue.value) == 4) { strError = "EXCELLENT - YOU HAVE GOT A GRADE."; fldColor = "green"; }//if objValue.style.background=fldColor; sfm_show_error_msg(strError,objValue); ret = false; return ret; } function validateInput(strValidateStr,objValue,strError) { var ret = true; var epos = strValidateStr.search("="); var command = ""; var cmdvalue = ""; if(epos >= 0) { command = strValidateStr.substring(0,epos); cmdvalue = strValidateStr.substr(epos+1); } else { command = strValidateStr; } switch(command) { case "req": case "required": { ret = TestRequiredInput(objValue,strError) break; }//case required case "maxlength": case "maxlen": { ret = TestMaxLen(objValue,cmdvalue,strError) break; }//case maxlen case "minlength": case "minlen": { ret = TestMinLen(objValue,cmdvalue,strError) break; }//case minlen case "dec": case "decimal": { ret = TestInputType(objValue,"[^0-9\.]",strError, "Enter numbers only"); break; } case "lt": case "lessthan": { ret = TestLessThan(objValue,cmdvalue,strError); break; } case "gt": case "greaterthan": { ret = TestGreaterThan(objValue,cmdvalue,strError); break; }//case greaterthan case "CheckGPA": { ret = CheckBtwValues(objValue,strError); break; } }//switch return ret; } <> < align="center">YOUR STUDENT ID :: Assignment NUMBER < action="http://www.vu.edu.pk" method="post" id="cs101frm"> < width="800" border="1" align="center"> <> < width="116" height="50" align="center" bgcolor="#CCCCCC">GPA < width="468" bgcolor="#CCCCCC">< name="GPA" type="text" id="GPA" size="75"> <> < height="50" bgcolor="#CCCCCC"> < bgcolor="#CCCCCC">< type="submit" name="button" id="button" value="Find Grade">