function services()
{      
   var xMax = 1280, yMax=1024;
   var xOffset = (xMax - 380)/2, yOffset = (yMax - 200)/2;
   gname=window.open('http://www.istphones.com/business-telephone-systems-emergency-services.php','centered','width=380,height=200,scrollbars=No,resizable=Yes, screenX='+xOffset+',screenY='+yOffset+', top='+yOffset+',left='+xOffset+'');
   if (window.focus) {gname.focus();}   
    
}
 
var bgGood = "#ffffff";
var bgBad = "#F78B8D";
  
function setColor(el, bg) {
  if (el.style) el.style.backgroundColor = bg;
}
 
function checkempty(form) {
  var valid = true;  
  if (form.email.value == "") {
    valid = false;
    setColor(form.email, bgBad);
  } else {
    setColor(form.email, bgGood);
  }
 
  if (form.name.value == "") {
    valid = false;
    setColor(form.name, bgBad);
  } else {
    setColor(form.name, bgGood);
  }
 
  if (form.phone.value == "") {
    valid = false;
    setColor(form.phone, bgBad);
  } else {
    setColor(form.phone, bgGood);
  }
   if (!valid) alert("Please fill required fields.");
  else
  {
    var supported = 0;
  str=form.email.value;
  if (window.RegExp) {
    var tempStr = "a";
    var tempReg = new RegExp(tempStr);
    if (tempReg.test(tempStr)) supported = 1;
  }
  if (!supported) 
  result= (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
  var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
  var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
  result= (!r1.test(str) && r2.test(str));
 
  if (!result){
  alert("Enter a Valid Email Address");
  setColor(form.email, bgBad);
  valid=false;}  
  }
  return valid;
}
 

function googlemap()

{ 

   var xMax = 1280, yMax=1024;

   var xOffset = (xMax - 780)/2, yOffset = (yMax - 640)/2;

   gname=window.open('http://www.istphones.com/is-technologies-location-google-map.php','centered','width=780,height=640,scrollbars=No,resizable=No, screenX='+xOffset+',screenY='+yOffset+', top='+yOffset+',left='+xOffset+'');

   if (window.focus) {gname.focus();}   

    

}