Livecycle javascript...condense if statement

I'm working on a form that will have a "Validate" button. The purpose of this button is to check and make sure all the fields are completed (this is what the project demands). Below is the code that checks to see if the field is null and then changes the border color and displays a text box.

if (form1.Main.sfRequestor.requestNameFirst.rawValue == null){
    form1.Main.sfRequest.txtValidate.presence = "visible";
    form1.Main.sfRequestor.requestNameFirst.border.edge.color.value = "255,0,0"
} else {
    form1.Main.sfRequest.txtValidate.presence = "hidden";
    form1.Main.sfRequestor.requestNameFirst.border.edge.color.value = "255,255,255"
};

if (form1.Main.sfRequestor.requestNameLast.rawValue == null){
    form1.Main.sfRequest.txtValidate.presence = "visible";
    form1.Main.sfRequestor.requestNameLast.border.edge.color.value = "255,0,0"
} else {
    form1.Main.sfRequest.txtValidate.presence = "hidden";
    form1.Main.sfRequestor.requestNameLast.border.edge.color.value = "255,255,255"
};

There are 20+ fields in several subforms that need to be checked. I'm trying to consolidate the code but am at a loss on how to do so. Can variables handle field names in Javascript?