解决Ext.form.TextField的maxLength siz属性问题

// Textfield ignores size attribute of text.. 

Ext.form.TextField.prototype.size = 20;
Ext.form.TextField.prototype.initValue = function()
{
    if(this.value !== undefined){
        this.setValue(this.value);
    }else if(this.el.dom.value.length > 0){
        this.setValue(this.el.dom.value);
    }
    this.el.dom.size = this.size;
    if (!isNaN(this.maxLength) && (this.maxLength *1) > 0 && (this.maxLength != Number.MAX_VALUE)) {
        this.el.dom.maxLength = this.maxLength *1;
    }
    
        
};