Question

I need help about jQuery.
How I can I make the font color of the 74 into red.
I mean once grade is below 75 font color will change to red or else green if passed.

$("document").ready( function(){

 //alert("working");

var passing_grade = parseInt("75");
var grade = parseInt($(".grade").val());

    if( grade < passing_grade ){
        $(".grade").css("color","#ff000");
    } else {
        $(".grade").css("color","#066d06");
}


} ); 

Answer 1

val method is used for getting/setting values of form elements, if the .grade element is not a form element, you should use text or html method, also note when parseInt is used, you should specify the radix.

$(document).ready( function(){
    $(".grade").css("color", function() {
        return parseInt(this.value, 10) > 75 ? "#ff0000" : "#066d06"
    })
}); 

---

For li elements you should use text method instead of val:

return parseInt($(this).text(), 10) > 75 ? "#ff0000" : "#066d06"

http://jsfiddle.net/wsBBH/