function callMsg(frnd_id,my_id,checkSum)
{
if(window.XMLHttpRequest)
{
xmlhttp=new XMLHttpRequest();
}
else
{
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if(this.readyState==4 && this.status==200)
{
document.getElementById("android_id").innerHTML=this.responseText;
}
};
xmlhttp.open("GET","callMsg.php?frnd_id="+frnd_id+'&my_id='+my_id+'&checkSum='+checkSum,true);
xmlhttp.send();
}