function flash_font(){   
    obj = document.getElementsByName("flashfont");
 // alert(obj.length);  
     for (i=0;i<obj.length;i++){
        if (i%2 == 0){
            if (vx == 0){
                 obj[i].style.color = '#FF5900';
                 obj[i].style.fontWeight = 'bold';
                 vx = 1;
            }else{
                 obj[i].style.color = '#FF0000';
                 obj[i].style.fontWeight = 'bold';
                 vx = 0;  
            }            
        }else{
            if (vx2 == 0){
                obj[i].style.color = '#FF0000';
                obj[i].style.fontWeight = 'bold';
                vx2 = 1;
            }else{
                obj[i].style.color = '#FF5900';
                obj[i].style.fontWeight = 'bold';
                vx2 = 0;
            }
           
        }   
  }
}
setInterval("flash_font()",500);
var vx = 0;
var vx2 = 0;