JavaScript time convert

I am very new to JavaScript. My guess is that there is a very easy answe开发者_运维问答r. I need to convert time in the format hh:mm:ss to Seconds.

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You can do something like this:

var s = "1:01:01";
var a = s.split(":");

var sec = parseInt(a[0], 10)*60*60;
sec += parseInt(a[1], 10)*60;
sec += parseInt(a[2], 10);

alert(sec);

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try this

  <SCRIPT LANGUAGE="JavaScript1.1"><!--
function split(string,text) {
    splitArray = string.split(text);
    splitIndex = splitArray.length;
}
//--></SCRIPT>


    <SCRIPT LANGUAGE="JavaScript"><!--
    var splitIndex = 0;
    var splitArray = new Array();

    function calculateTime() {
        splitIndex = 0;
        split(document.myForm.myTime.value,':');

        for (var i=splitIndex-1, j=1, answer=0; i>=0; i=i-1, j=j*60)
            answer += splitArray[i]*j - 0;

        document.myForm.mySeconds.value = answer;
    }
    //--></SCRIPT>

    <FORM NAME="myForm">
    <P>HH:MM:SS = <INPUT NAME="myTime" TYPE="TEXT" MAXLENGTH="8" LENGTH="10">
    <P>Seconds = <INPUT NAME="mySeconds" TYPE="TEXT">
    <P><INPUT TYPE="BUTTON" VALUE="Calculate" onClick="calculateTime()">
    </FORM>