I would like to go through each of the Rows then each of the points and capture a value tied to ColNum equaling to each iteration of j then get the max of these values. In easier terms I want to get Width of all object that have attribute ColNum = 2 then get the max of that.

This code is a modified javascript/html for Schneider electric TGML editior.

`function load(evt)
{
var TGMLDocument;
var comp;
var Point;
var Row;
var Row_;
var colNum;
var testArr1 = {};
var testArr2;


       TGMLDocument = evt.getCurrentTarget().getOwnerDocument().getDocumentElement();  
       comp = evt.getCurrentTarget();
       Row = nodeFilter(TGMLDocument, "Id", "GlobalRowsX");
      // Point = nodeFilter(comp, "Id", "Point");
       
        for(var i=0; i<Row.length; i++)
        {      
       // console.log("The Row is", i);

       Point = nodeFilter(Row[i], "Id", "Point");
       
        for(var j=0; j<Point.length; j++)
        {   
        console.log("The Row is " + i + ", The Point is " + j);
        Point[j].setAttribute("ColNum", j);
        console.log("The Column Number is " + Point[j].getAttribute("ColNum"));
            }
        }
        
        
}




function nodeFilter(cComp, attrName, attrValue, searchType)
{
    try
    {
        var returnArr = [];
        switch(searchType)
        {
            case 'children':
                var children = cComp.getChildNodes();
                break;
            case 'nested':
                var children = cComp.getElementsByTagName('*');
                break;
            default:
                var children = cComp.getChildNodes();
        }
        for (var i = 0; i < children.length; i++)
        {
            try
            {
                if (children.item([i]).hasAttribute(attrName))
                {
                    if (children.item([i]).getAttribute(attrName) == attrValue)
                    {
                        returnArr.push(children.item([i]));
                    }
                }
            }catch(err){}
        }
        if (returnArr.length > 1)
        {           return returnArr; }
        else if (returnArr.length > 0){     return returnArr[0]; }
        else{                               return null; }    
    }catch(err){
    }
}`

I have tried using arrays, obj {}, and eval to create dynamic variables declarations.
Row and Point are returned as arrays.