var colourRandom=0;
      function highlightCells(divObject,intRandom) {
      	//colourDark='';
      	//colourLight='';
        //var colourPrevious = colourRandom;
      	//var colourRandom=Math.floor(Math.random()*5)
      	switch (intRandom) { //(colourRandom) {
          case 0: colourDark = 'FBE4A5'; colourLight = 'FCBE15'; break; 
          case 1: colourDark = 'FFDBDB'; colourLight = 'C01010'; break; 
          case 2: colourDark = 'C7E0EF'; colourLight = '6EAED4'; break; 
          case 3: colourDark = 'D5EACC'; colourLight = '9FD18C'; break; 
          case 4: colourDark = 'FED7C2'; colourLight = 'FA670A'; break; 
      	}
      	
        document.all('outer_table_' + divObject.id).style.backgroundColor='#'+colourDark;
        document.all('outer_table_' + divObject.id).style.borderColor='#'+colourLight;
        document.all('outer_table_' + divObject.id).style.color='#'+colourLight;
        document.all('inner_table_' + divObject.id).style.borderColor='#'+colourDark;
      }
      function dimCells(divObject) {
        document.all('outer_table_' + divObject.id).style.backgroundColor='#C2C2C2';
        document.all('outer_table_' + divObject.id).style.borderColor='#999999';
        document.all('outer_table_' + divObject.id).style.color='#999999';
        document.all('inner_table_' + divObject.id).style.borderColor='#C2C2C2';
      }