Form field validation

hi,

 

this not right post question if i'm in wrong place let me know.

 

i have form calculates area of play field.

the field must meet criteria, no length less 65ft on 1 side , not less than 8550  sq.ft).

 

//the applicant enters value length , width.

//the 2 fields validate number 65 or greater

//the form calculates total area.

var len = this.getfield("sitelength");

var width = get.getfield ("sitewidth");

var area = len * width;

// above works fine

// want alert when value below 8550

if(area=<8550){app.alert(“the total area below allowable standards”);}

// not working, think i'm close?

// want fields (length , width) reset 0 value when alert acknowledged.

i believe more if statements, like, sintax out lunch i'm indicating want.

     if value area less 8550 setfield("sitelength")=0;

     if value area less 8550 setfield("sitewidth")=0; .

 

 

that’s it, i’m green grass stuff , no spring chicken appricated.

 

tnx gypsyk9

the calculation script like:

 

// set names of input fields in array

var fn = ["sitelength", "sitewidth"];

 

// field values, strings

var len = getfield(fn[0]).valueasstring;

var width = getfield(fn[1]).valueasstring;

 

// calculate area if both fields have entries

if (len && width) {

 

    var area = +len * +width;

 

    // alert user if area less 8550

    if (area < 8550) {

 

        // show alert, blank field, , reset input fields

        app.alert("the total area below allowable standards");

        event.value = "";

        resetform(fn);

 

    } else {

 

        // set field's value

        event.value = area;

 

    }

 

} else {

 

    // blank field

    event.value = "";

 

}

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