// this function will return the index# selected from colou boxes
function Colours_picked()
{
       
           // declare some variables
           //the doc we wish to access
             var ext = ".htm";
             var file_name; 
            var target_frame="displayFrame"; 
            //Default values
            the_wall_colour ="W";
            the_fascia_colour= "1";
	          the_roof_colour="1";
            folder="ColuorF/";
        // this is the wallcolour
           var the_select1=window.document.pick_colours.wall_colour;
           var the_index1=the_select1.selectedIndex;
         //   var the_wall_colour=the_select1.options[the_index1].text;
         if(the_index1==1) //then it has changed to C
         {
            the_wall_colour ="C";
         }
      // this is the fascia colour
         var the_select2=window.document.pick_colours.fascia_colour;
         var the_index2=the_select2.selectedIndex;
     //   var the_fascia_colour=the_select2.options[the_index2].text;
          if (the_index2 == 0) {
            the_fascia_colour = "1";
               } else if (the_index2 == 1) {
               the_fascia_colour = "2";
               } else if (the_index2 ==2) {
               the_fascia_colour = "3";
              } else {
         the_fascia_colour = "4";
        }
      // this is the roof colour
          var the_select3=window.document.pick_colours.roof_colour;
         var the_index3=the_select3.selectedIndex;
      //  var the_roof_colour=the_select3.options[the_index3].text;
        if (the_index3 == 0) {
            the_roof_colour = "1";
               } else if (the_index3 == 1) {
               the_roof_colour = "2";
               } else if (the_index3 ==2) {
               the_roof_colour = "3";
           } else if (the_index3 ==3) {
               the_roof_colour = "4";
              } else {
         the_roof_colour = "5";
        }
        file_name = the_wall_colour+the_fascia_colour+the_roof_colour+ext;
          window.open(file_name,target_frame);
  }