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function isNumber(str){
    var mynumber="0123456789";
    for(var i=0;i<str.length;i++){
        var c=str.charAt(i);
        if(mynumber.indexOf(c)==-1){
            return false;
        }
    }
    return true;
}


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//Register NameSpace for window.MSN
if(!window.MSN)
{
    window.MSN = {};
}
if(!window.MSN.SET)
{
    window.MSN.SET = {};
}
if(!window.MSN.SET.Utilities)
{
    window.MSN.Utilities = {};
}
//Check you borwse type
//IE7 &IE8 & FF et ......

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try { //Internet Explorer
xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async="false";
xmlDoc.loadXML(data);
} catch(e) { //Other Browsers
parser=new DOMParser();
xmlDoc=parser.parsefromString(data,"text/xml");
} ......
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