function P7_swapClass(){ //v1.4 by PVII
 var i,x,tB,j=0,tA=new Array(),arg=P7_swapClass.arguments;
 if(document.getElementsByTagName){for(i=4;i<arg.length;i++){tB=document.getElementsByTagName(arg[i]);
  for(x=0;x<tB.length;x++){tA[j]=tB[x];j++;}}for(i=0;i<tA.length;i++){
  if(tA[i].className){if(tA[i].id==arg[1]){if(arg[0]==1){
  tA[i].className=(tA[i].className==arg[3])?arg[2]:arg[3];}else{tA[i].className=arg[2];}
  }else if(arg[0]==1 && arg[1]=='none'){if(tA[i].className==arg[2] || tA[i].className==arg[3]){
  tA[i].className=(tA[i].className==arg[3])?arg[2]:arg[3];}
  }else if(tA[i].className==arg[2]){tA[i].className=arg[3];}}}}
}

var AgntUsr = navigator.userAgent.toLowerCase();
var DomYes = document.getElementById ? 1 : 0;
var NavYes = AgntUsr.indexOf('mozilla') != -1 && AgntUsr.indexOf('compatible') == -1 ? 1 : 0;
var ExpYes = AgntUsr.indexOf('msie') != -1 ? 1 : 0;
var OprYes = AgntUsr.indexOf('opera') != -1 ? 1 : 0;
var Opr6OrLess = window.opera && navigator.userAgent.search(/opera.[1-6]/i) != -1; 
var DomNav = DomYes && NavYes ? 1 : 0;
var DomExp = DomYes && ExpYes ? 1 : 0;
var Nav4 = NavYes && !DomYes && document.layers ? 1 : 0;
var Exp4 = ExpYes && !DomYes && document.all ? 1 : 0;
var Linux = AgntUsr.indexOf('linux') != -1 || AgntUsr.indexOf('x11') != -1 ? 1 : 0;
    
function justNumeric(ev,dot) {

    /* Get ASCII value of key that user pressed */
    var key = (ExpYes) ? ev.keyCode : ev.which;
    
    /* 
     * Was key that was pressed a numeric character (0-9) or a dot (.) 
     * or enter?
     */
    return ((key > 47 && key < 58) || (key == 46 && dot) 
            || key == 13  
            || key == 0);
}