// function will clear input elements on ever form on HTML page

function clearForms() {
    // variable declaration    
    var x, y, z, type = null;

    // loop through forms on HTML page    
    for (x = 0; x < document.forms.length; x++) {
        // loop through each element on form        
        for (y = 0; y < document.forms[x].elements.length; y++) {
            // define element type            
            type = document.forms[x].elements[y].type;
            // alert before erasing form element            
            //alert('form='+x+' element='+y+' type='+type);            

            // switch on element type            
            switch (type) {
                case 'text':
                case 'textarea':
                case 'password':
                    //case "hidden":                
                    document.forms[x].elements[y].value = '';
                    break;
                case 'radio':
                case 'checkbox':
                    document.forms[x].elements[y].checked = '';
                    break;
                case 'select-one':
                    document.forms[x].elements[y].options[0].selected = true;
                    break;
                case 'select-multiple':
                    for (z = 0; z < document.forms[x].elements[y].options.length; z++) {
                        document.forms[x].elements[y].options[z].selected = false;
                    }
                    break;
            } // end switch        
        } // end for y    
    } // end for x
}