function getObject(objectId) 
{
    if(document.getElementById && document.getElementById(objectId)) {
		 // W3C DOM
		 return document.getElementById(objectId);
		    } else if (document.all && document.all(objectId)) {
		 // MSIE 4 DOM
		 return document.all(objectId);
		    } else if (document.layers && document.layers[objectId]) {
		 // NN 4 DOM.. note: this won't find nested layers
		 return document.layers[objectId];
		    } else {
		 return false;
		    }
} 
		
 function isEmail( paraEmail ){
		var reg_email = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
		if( reg_email.test(paraEmail) ){
			return true;
		}
		return false;
	}