function keyPressedNumber(e) {
    var keynum;
    if(window.event) //IE 
      keynum = e.keyCode;
    else
      keynum = e.which;
    return keynum;    
  }

  function isEnterOrTabPressed(e) {
    var keynum = keyPressedNumber(e);
    if(keynum == 9 || keynum == 13) return true; else return false;
  }
  
  function setSelectionRange(obj) {
    if(obj && typeof(obj) == "object" && (obj.type == "text" || obj.type == "textarea")) {
      if(obj.createTextRange) {
        var range = obj.createTextRange();
        range.moveStart("character", 0);
        range.moveEnd("character", obj.value.lengh-1);
        range.select();
      } else { 
        if(obj.setSelectionRange) {
          obj.setSelectionRange(0,obj.value.length);
        }
      }
      obj.focus();
    }
    if(obj && typeof(obj) == "object" && obj.options) { obj.focus(); }

  }

  function paramsMT(name) {
  
    this.myTableName = name;
    this.table = document.getElementById(this.myTableName);

    this.thead = this.table.tHead;
    this.tbody = this.table.tBodies.item(0);

    this.cellSelectedClass = 'selectedCell';
    this.rowSelectedClass = 'selectedRow';

    this.selectedRow;
    this.selectedCell;

    this.rowCount = function() {
      return this.tbody.rows.length;
    }

    this.colCount = function() {
      return this.thead.rows.item(0).cells.length;
    };

    this.colWidth = function(i) {
      return this.thead.rows.item(0).cells.item(i).width;
    };

    this.moveUpRow = function() {
      if(this.selectedRow) this.selectedRow.moveUp(); 
    };

    this.moveDownRow = function() {
      if(this.selectedRow) this.selectedRow.moveDown(); 
    };

    this.insertRow = function(row, newRow) {
      if(!row)
        if(this.rowCount())
        if(typeof(row) == "number") 
          row = this.tbody.rows.item(row);
        else 
          row = this.tbody.rows.item(this.tbody.rows.length-1);

      var row_tmp;
      if((newRow) && (row)) row_tmp = newRow; else { row_tmp = this.createRow(); this.fillWithDefaultData(row_tmp); }  

      if(this.rowCount() > 0 && row.nextSibling) 
        this.tbody.insertBefore(row_tmp, row.nextSibling);
      else 
        this.tbody.appendChild(row_tmp); 

      return row_tmp;     
    };

    this.refreshRowIndex = function() {
      for(var i=0; i<this.rowCount(); i++) {
        this.tbody.rows.item(i).index = i;
        if(this.onRefreshRowIndex) this.onRefreshRowIndex(this.tbody.rows.item(i));
      }
    }
    this.onRefreshRowIndex;

    this.addRow = function(i,data) {
      var row = this.createRow();
      if(this.selectedRow) this.selectedRow.deselect();
      if(this.selectedCell) this.selectedCell.deselect();
      row.myTable = this;
      if(i || i===0)
        this.tbody.insertBefore(row,this.tbody.rows.item(i));
      else
        this.tbody.appendChild(row);
      this.refreshRowIndex();
      this.setRowData(row, data);
      for(var i=0; i<this.colCount(); i++) row.cells.item(i).afterCreate();
      return row;
    }

    this.createRow = function(row) {
      var row = document.createElement('tr');
      row.myTable = this;
      row.isnew = false;
      row.onclick = function() { this.select(); }
      row.select = function() { 
        if(!this.myTable.selectedRow || this.myTable.selectedRow !== this) {
          if(this.myTable.selectedRow) this.myTable.selectedRow.deselect();
          this.myTable.selectedRow = this; 
          this.className = this.myTable.rowSelectedClass; 
          if(row.onSelect) row.onSelect();
        }
      }
      row.deselect = function() {
        if(this.myTable.selectedRow === this) {
          this.className = '';
          this.myTable.selectedRow = '';
          if(row.onDeselect) row.onDeselect();
        }
      };

      row.selectNext = function() {

        if(this.index < this.myTable.rowCount()-1) { this.deselect(); this.nextSibling.select(); return this.nextSibling; }
        else {
			if(this.noAddNew) return this;
			   
			this.deselect();
           	var row = this.myTable.addRow(); return row; 
        }
      }
      row.selectPrevious = function() {
        this.deselect();
        if(this.previousSibling && this.index > 0) { this.previousSibling.select(); return this.previousSibling; }else return this;
      }
      row.deleteRow = function(noNew) {
        if(this.myTable.selectedCell) this.myTable.selectedCell.deselect();
        if(this.myTable.selectedRow) this.myTable.selectedRow.deselect();
        if(this.myTable.rowCount() == 1 && !noNew) {
          var MyTaBlE = this.myTable;   
          setTimeout( function() { MyTaBlE.addRow(); refreshPositionIndex();} , 1000);     
        }
        this.myTable.tbody.removeChild(this);
        this.myTable.refreshRowIndex();
      }
      row.moveUp = function() {
        if(!this.previousSibling) return;
        this.myTable.tbody.insertBefore(this,this.previousSibling);
        this.myTable.refreshRowIndex();
      }
      row.moveDown = function() {
        if(!this.nextSibling) this.myTable.addRow(row);
        this.myTable.tbody.insertBefore(this.nextSibling,this);
        this.myTable.refreshRowIndex();
      }
      row.setData = function(data) {
        if(!data || typeof(data) != "object") { return; };
        for(var i=0; i<this.myTable.colCount(); i++) {
          this.cells.item(i).setData(data);
        }        
      }
      row.getData = function() {
        var data = new Object();
        for(var i=0; i<this.myTable.colCount(); i++) {
          if(this.cells.item(i).getData) this.cells.item(i).getData(data,true);
        }    
        return data;    
      }

      for(var i=0; i<this.colCount(); i++) {
        var cell = this.createCell(i);
        row.appendChild(cell);
      }
      if(this.onCreateRow) this.onCreateRow(row);
      return row;

    };


    this.onCreateRow; //function(row) {}

    this.createCell = function(i) {
      var cell = document.createElement('td');
      cell.index = i;
      cell.myTable = this;
      cell.onclick = function() { this.select(); }
      cell.select = function() { 

        if(!this.myTable.selectedCell || this.myTable.selectedCell !== this) {
          if(this.myTable.selectedCell) this.myTable.selectedCell.deselect();
          this.myTable.selectedCell = this; 
          if(this.firstChild.focus && !this.noSelect) setSelectionRange(this.firstChild);
	
          if(this.onSelect) this.onSelect();
          this.className = this.myTable.cellSelectedClass; 
		  	  	
        }
      }
      cell.deselect = function() {
        if(this.myTable.selectedCell === this) {
          if(cell.onDeselect) cell.onDeselect();
          this.className = '';
          this.selected = false;
          this.myTable.selectedCell = '';
        }
      };
      cell.selectNext = function() {
        this.deselect();
        if(this.nextSibling) this.nextSibling.select();
        else {
          if(!this.parentNode.nextSibling) { if(this.noNewAdd) return; else this.myTable.addRow(); }
          this.parentNode.nextSibling.select();
          this.parentNode.nextSibling.firstChild.select();
        }
      }
      cell.afterCreate = function() {}
      cell.setData = function(data) {}
      cell.getData = function(data) {}
      if(this.onCreateCell) this.onCreateCell(cell);
      return cell;
    };
    this.onCreateCell; //function(cell) {}
    

    this.setRowData = function(row,data) {
      for(var i=0; i<this.colCount(); i++) {
        this.setCellData(row,row.cells.item(i),data);
      }
    }

    this.setCellData = function(row,cell,data) {
      if(typeof(row) == "number") 
        if(this.tbody.rows.item(row)) row = this.tbody.rows.item(row);
      if(typeof(cell) != "object")
        if(typeof(cell) == "number" && typeof(row) == "object") {
          if(row.cells.item(cell)) 
            cell = row.cells.item(cell);
          else return;
        }
        else return;
      if(this.onSetCellData) this.onSetCellData(row,cell,data);
    }

    this.onSetCellData; //function(row,cell,data) {}




    this.selectRow = function(row) {
      if(this.selectedRow === row) return;


      if(this.selectedRow) this.deselectRow();


      this.selectedRow = row;


      this.selectedRow.className = this.rowSelectedClass;


      this.setEditNames(this.selectedRow,!this.selectedRow.isnew);          


    }





    this.selectNextRow = function() {

      if(!this.selectedRow) return;


      if(!this.selectedRow.nextSibling) this.insertRow();


      var cell_id = this.selectedCell.lp;


      this.selectRow(this.selectedRow.nextSibling);


      this.selectCell(this.selectedRow.cells.item(cell_id));


    }


    this.selectPreviousRow = function() {


      if(!this.selectedRow) return;


      if(!this.selectedRow.previousSibling) return;


      if(this.selectedRow === this.tbody.rows.item(0)) return;


      var cell_id = this.selectedCell.lp;


      this.selectRow(this.selectedRow.previousSibling);


      this.selectCell(this.selectedRow.cells.item(cell_id));


    }

    this.refreshNumeration = function() {
      for(var i=0; i<this.tbody.rows.length; i++)
        this.tbody.rows.item(i).cells.item(0).firstChild.value = i+1;
    }

    this.KeyPressedNumber = function(e) {
      var keynum;
      if(window.event) //IE 
        keynum = e.keyCode;
      else
        keynum = e.which;
      return keynum;    
    }
    
    this.KeyPressed = function(e, cell, method) {
      var keynum;
      if(window.event) //IE 
        keynum = e.keyCode;
      else
        keynum = e.which;
      if((keynum == 9) || (keynum == 13)) {
        cell.selectNext();
        return false;
      }
      if(keynum == 40) { var id = cell.index; var row = cell.parentNode.selectNext(); if(row) { row.select(); row.cells.item(id).select(); } }
      if(keynum == 38) { var id = cell.index; var row = cell.parentNode.selectPrevious(); if(row) { row.select(); row.cells.item(id).select(); } }
      if(e.shiftKey && (method == "decimalNumber" || method == "onlyNumber")) return false; 
      if(method == "decimalNumber") return this.OnlyNumbers(keynum);
      if(method == "onlyNumber") return this.OnlyNumbers(keynum, true);
      return true;
    } 

    this.OnlyNumbers = function(e, noQuote) {      var keynum = e, keychar, numcheck;
      keychar = String.fromCharCode(keynum);
      numcheck = /\d/;
      return numcheck.test(keychar)              || ((!noQuote)?(keynum == 190):false)
             || (keynum == 8) //backspace
             || (keynum == 46) //delete
             || (keynum == 13) //enter             || (keynum == 0) //special keys with FF
             || (keynum == 37) //left arrow
             || (keynum == 39) //right arrow
             || (keynum == 188); //,    
	} 

    this.row = function(i) { if(this.tbody.rows.item(i)) return this.tbody.rows.item(i); }
    this.cells = function(i,j) { if(this.tbody.rows.item(i).cells.item(i)) return this.tbody.rows.item(i).cells.item(i); }
  }